Every Eeveelution ex in Prismatic Evolutions is a Stage 1 that evolves from Eevee. Not from Flareon, not from Umbreon. From Eevee. One Basic turns into whichever of eight answers the board needs, and that is the whole deck.
That fact is worth stating loudly because it caused an argument at the table. There is no "base Flareon" to find. There cannot be: the only non-ex Flareon ever printed is Prismatic Evolutions 013, it carries Regulation G, and it rotated out in April 2026. Playing Eevee straight into Flareon ex was never a house rule. It is the card working as printed.
Rainbow DNA exists for a narrower reason. "Eevee ex" is a different card name from "Eevee", so by default nothing can be played on top of it at all. Rainbow DNA is the permission slip that lets Eevee ex become an Eeveelution ex. It reads "any Pokémon ex that evolves from Eevee," so the one line that genuinely is illegal is Eevee ex into a non-ex Eeveelution. Only a plain Eevee can do that.
The keystone is the ACE SPEC
That parenthetical is what makes this deck possible. It reduces coloured requirements, not just Colorless. Every one of the big "gem" attacks needs Lightning or Grass, and Fox plays neither:
Gem attack
Printed cost
Payable from his colours
Flareon ex Carnelian 280
R + W
Umbreon ex Onyx, takes a Prize
P + D
Espeon ex Amazez, devolves their board
P + D
Glaceon ex Euclase
W + D
One Crystal, one Pokémon, so he picks one gem per game. And the best line in the deck is not a gem at all. Flareon ex holding the Crystal casts Burning Charge for a single : 130 damage, and search the deck for two Basic Energy of any types. That is the engine and the attacker in one card, and it happens to be his favourite Pokémon.
Deck List
This is Sun and Moon, the home build. For Fire and Ice, apply The Swap.
Basics: 10 (4 Eevee, 2 Eevee ex, 4 Hoothoot). Eight of the ten sit under Buddy-Buddy Poffin's 70 HP cap; Eevee ex is the exception at 200.
The Swap
Ten cards out, ten cards in. Everything else stays exactly where it is.
Out
In
1 Umbreon ex PRE 060
1 Flareon ex PRE 014
1 Espeon ex PRE 034
2 Glaceon PRE 025, the non-ex
2 Battle Cage PFL 085
1 Night Stretcher SFA 061
3 Basic Psychic Energy
3 Basic Water Energy
3 Basic Darkness Energy
3 Basic Fire Energy
That lands Fire and Ice on 20 Pokémon, 27 Trainers, 13 Energy, also 60.
What actually moves is Energy first, Pokémon second, and one Trainer each way. Every Supporter is shared. The whole draw engine is shared. The ACE SPEC is shared. So the deck plays identically in both modes, which is the point: he learns one deck, not two.
Category
Swaps
Detail
Energy
6 each way
the biggest chunk by far
Pokémon
2 out, 3 in
the third attacker, and one count change
Stadium
home only
2 Battle Cage
Items
away only
1 Night Stretcher
Supporters
never
all 12 are shared
Sun and Moon
Espeon is the Sun evolution and Umbreon is the Moon evolution. That is where the name comes from, and the pairing is aimed squarely at Dad's side of the table.
Umbreon ex is the reason this build exists. Every card in the lantern decks is Darkness Weakness ×2, top to bottom: Mega Chandelure ex, Gourgeist ex, Dusknoir, Litwick, Lampent, Pumpkaboo, Duskull. Moon Mirage does 160, which becomes 320. That one-shots Gourgeist ex at 270, Dusknoir at 160, and every small body on the board. Mega Chandelure ex survives at 350, but only by 30.
Espeon ex is a single copy doing a single job.Amazez devolves every evolved Pokémon the opponent controls, shuffling the top Stage card back into their deck. Against a board of Mega Chandelure ex, Dusknoir, Gengar, and Crobat ex that erases an entire game's setup in one attack. It costs , which the Crystal turns into P and D, both of which this build already runs.
Espeon is Darkness Weakness ×2 and Dad's decks are full of Darkness attackers, so it dies the turn after it fires. That is a fair price for undoing his board, and it is why there is only one.
Battle Cage is the sleeper. Dad wins with damage counters placed by Abilities, and Tera bench-immunity does not stop those. Dusknoir's Cursed Blast puts 13 counters anywhere it likes; Froslass pings every Ability Pokémon each Checkup. Battle Cage prevents damage counters being placed on Benched Pokémon by the opponent's attacks and Abilities. Fox places no counters at all, so a card that reads as symmetric is entirely one-sided in his favour.
Fire and Ice
Flareon and Glaceon, built for a field of strangers rather than for Dad.
Flareon ex is the haymaker.Carnelian does 280, and Mega Excadrill ex is Metal, which means 280 doubles to 560 into its 340 HP. Mega Excadrill is the most-played deck in the format. Fox's favourite Pokémon one-shots it, which is a nice thing to be able to tell him.
Fire also doubles into Mega Venusaur ex at 380, Dhelmise, and the Grass core of Festival Lead. Between them that is close to a fifth of the field.
Glaceon here is the non-ex print, and that is deliberate. Glaceon ex is Metal Weakness ×2, so it dies to the very Excadrill that Flareon beats. The plain Glaceon gives up one Prize instead of two, and Permeating Chill does 30 now plus 9 damage counters at the end of the opponent's next turn. That is 120 for a single , and counters ignore Weakness and Resistance entirely.
Giving up two Prizes for every knockout is this archetype's real weakness, and a 1-Prize attacker is the honest fix. It also keeps Fox's third-favourite Eeveelution in the deck without the liability.
Pick Your Ten
This part is for Fox.
Your deck is 50 cards that never change, plus 10 cards you choose. Pick before we start shuffling.
Playing Dad at home? Take Sun and Moon. Espeon and Umbreon. Umbreon hits his ghosts for double damage, which means almost everything he plays falls over twice as fast. Espeon has one job: use Amazez and send his big evolved Pokémon back into his deck. He will not be happy. The two Battle Cage stop him sneaking damage onto your Bench.
Going to game night? Take Fire and Ice. Flareon and Glaceon. Flareon's Carnelian hits for 280, and doubles to 560 against the metal Pokémon lots of people play, which knocks out almost anything in one shot. Glaceon is not an ex, so if it gets knocked out your opponent only takes one Prize instead of two. That matters more than it sounds like it does.
Either way, three things stay true. Flareon ex fetches your Energy with Burning Charge. Put Sparkling Crystal on whichever Pokémon you want to attack with, because it makes that attack cost one less Energy. And keep your Eeveelutions on the Bench until you need them, because Tera means nothing can touch them there.
Pokémon
Eevee (Prismatic Evolutions · H)x3
Set
SV: Prismatic Evolutions 074/131
Rarity
Common
Type
Colorless
HP
50
Stage
Basic
Ability
Boosted Evolution - As long as this Pokémon is in the Active Spot, it can evolve during your first turn or the turn you play it.
Weakness
Fighting ×2
Retreat
1
Tournament
legal (Reg H)
Attack
Reckless Charge (30) - This Pokémon also does 10 damage to itself.
Boosted Evolution lets it evolve during your first turn or the turn you play it, as long as it is Active. This is the turn-one Flareon ex, and it is why three copies are here.
Eevee (Twilight Masquerade · H)x1
Set
SV06: Twilight Masquerade 135/167
Rarity
Common
Type
Colorless
HP
50
Stage
Basic
Weakness
Fighting ×2
Retreat
1
Tournament
legal (Reg H)
Attack
Ascension - Search your deck for a card that evolves from this Pokémon and put it onto this Pokémon to evolve it. Then, shuffle your deck.
Attack
Quick Attack (20+) - Flip a coin. If heads, this attack does 20 more damage.
Ascension searches your deck for a card that evolves from this Pokémon and puts it straight on. A free tutor into whichever Eeveelution the matchup wants, which matters in a deck built from single copies. One copy, because it costs you the turn.
Eevee exx2
Set
SV: Prismatic Evolutions 075/131
Rarity
Double Rare
Type
Colorless
HP
200
Stage
Basic
Ability
Rainbow DNA - This Pokémon can evolve into any Pokémon ex that evolves from Eevee if you play it from your hand onto this Pokémon. (This Pokémon can't evolve during your first turn or the turn you play it.) Tera - As long as this Pokémon is on your Bench, prevent all damage done to this Pokémon by attacks (both yours and your opponent's).
Weakness
Fighting ×2
Retreat
1
Tournament
legal (Reg H)
Attack
Coruscating Quartz (200)
Basic, Tera, 200 HP, 2 Prizes.Rainbow DNA lets it evolve into any Pokémon ex that evolves from Eevee. It cannot do this on your first turn or the turn you play it, so it needs a turn on the board first.
Its attack, Coruscating Quartz, costs and will almost never be paid. Read it as a Basic that holds a decision, not as an attacker.
Flareon exx3
Set
SV: Prismatic Evolutions 014/131
Rarity
Double Rare
Type
Fire
HP
270
Stage
Stage 1
Ability
Tera - As long as this Pokémon is on your Bench, prevent all damage done to this Pokémon by attacks (both yours and your opponent's).
Weakness
Water ×2
Retreat
2
Tournament
legal (Reg H)
Attack
Burning Charge (130) - Search your deck for up to 2 Basic Energy cards and attach them to 1 of your Pokémon. Then, shuffle your deck.
Attack
Carnelian (280) - During your next turn, this Pokémon can't attack.
Stage 1 from Eevee, Tera, 270 HP.Burning Charge does 130 and searches the deck for up to 2 Basic Energy, attaching them to any one of your Pokémon. It does not say Fire. It says Basic Energy, which is how a deck with three colours only runs thirteen Energy cards.
With Sparkling Crystal attached it costs one . One Fire Energy for 130 damage and two Energy off the deck is the strongest repeatable play in the list.
Carnelian does 280 and locks it out of attacking next turn. See Fire and Ice.
Umbreon exx3
Set
SV: Prismatic Evolutions 060/131
Rarity
Double Rare
Type
Darkness
HP
280
Stage
Stage 1
Weakness
Grass ×2
Retreat
2
Tournament
legal (Reg H)
Attack
Moon Mirage (160) - Your opponent's Active Pokémon is now Confused.
Attack
Onyx - Discard all Energy from this Pokémon, and take a Prize card.
280 HP, the highest in the line, and Darkness. Moon Mirage does 160 and Confuses, which forces a coin flip on their attack and costs them 30 and their turn on tails.
Onyx discards all Energy from this Pokémon and takes a Prize card. No attack, no damage, no interaction with HP. With the Crystal it costs two Energy instead of three.
Weak to Grass ×2, which is worth remembering against Festival Lead.
Espeon exx1
Set
SV: Prismatic Evolutions 034/131
Rarity
Double Rare
Type
Psychic
HP
270
Stage
Stage 1
Weakness
Darkness ×2
Resistance
Fighting -30
Retreat
1
Tournament
legal (Reg H)
Attack
Psych Out (160) - Discard a random card from your opponent's hand.
Attack
Amazez - Devolve each of your opponent's evolved Pokémon by shuffling the highest Stage Evolution card on it into your opponent's deck.
Stage 1 from Eevee, 270 HP.Psych Out does 160 and discards a random card from their hand. Amazez devolves each of the opponent's evolved Pokémon by shuffling the highest Stage card on it into their deck.
Weak to Darkness ×2. Against Dad it is a one-shot weapon that will not survive the reply.
Glaceon
Set
SV: Prismatic Evolutions 025/131
Rarity
Rare
Type
Water
HP
120
Stage
Stage 1
Weakness
Metal ×2
Retreat
1
Tournament
legal (Reg H)
Attack
Permeating Chill (30) - At the end of your opponent's next turn, put 9 damage counters on the Defending Pokémon.
Attack
Icicle Missile (70)
The non-ex, 120 HP, 1 Prize.Permeating Chill does 30, then puts 9 damage counters on the Defending Pokémon at the end of the opponent's next turn. Counters ignore Weakness and Resistance.
Note the delay. If they retreat the damaged Pokémon, the counters have nowhere to land.
Hoothootx4
Set
SV07: Stellar Crown 114/142
Rarity
Common
Type
Colorless
HP
70
Stage
Basic
Weakness
Lightning ×2
Resistance
Fighting -30
Retreat
1
Tournament
legal (Reg H)
Attack
Triple Stab (10x) - Flip 3 coins. This attack does 10 damage for each heads.
Basic, and 70 HP exactly, which is what lets Buddy-Buddy Poffin fetch it. Four copies, because the owl line is the deck's Trainer engine and it cannot start without the bottom half.
Noctowlx2
Set
SV07: Stellar Crown 115/142
Rarity
Rare
Type
Colorless
HP
100
Stage
Stage 1
Ability
Jewel Seeker - Once during your turn, when you play this Pokémon from your hand to evolve 1 of your Pokémon, if you have any Tera Pokémon in play, you may search your deck for up to 2 Trainer cards, reveal them, and put them into your hand. Then, shuffle your deck.
Weakness
Lightning ×2
Resistance
Fighting -30
Retreat
1
Tournament
legal (Reg H)
Attack
Speed Wing (60)
Stage 1 from Hoothoot. Jewel Seeker: when you play it from your hand to evolve, with any Tera Pokémon in play, search your deck for up to 2 Trainer cards. Every Eeveelution ex is Tera, so the condition is on from turn one. Two copies here rather than the pure Flareon build's three, because this deck spends more seats on Eeveelutions.
Trainers — Supporters
Lillie's Determinationx4
Set
ME01: Mega Evolution 119/132
Rarity
Uncommon
Type
Trainer - Supporter
Ability
Shuffle your hand into your deck. Then, draw 6 cards. If you have exactly 6 Prize cards remaining, draw 8 cards instead.
Tournament
legal (Reg I)
Shuffle your hand into your deck and draw 6; with exactly 6 Prize cards remaining, draw 8 instead. The full four and the only raw draw in the list. The shuffle half quietly returns whichever Eeveelution this matchup does not want, back into the deck where Hilda and Ultra Ball can find its replacement.
Boss's Ordersx3
Set
ME01: Mega Evolution 114/132
Rarity
Uncommon
Type
Trainer - Supporter
Ability
Switch in 1 of your opponent's Benched Pokémon to the Active Spot.
Tournament
legal (Reg I)
Switch in 1 of your opponent's Benched Pokémon to the Active Spot. Tera makes Fox's Bench untouchable, and Boss's Orders is the reminder that the rule never protected the other side of the table. Three copies, the Ghetsis print, shared across the house.
Crispinx3
Set
SV07: Stellar Crown 133/142
Rarity
Uncommon
Type
Trainer - Supporter
Ability
Search your deck for up to 2 Basic Energy cards of different types, reveal them, and put 1 of them into your hand. Attach the other to 1 of your Pokémon. Then, shuffle your deck.
Tournament
legal (Reg H)
Search your deck for up to 2 Basic Energy cards of different types: one to hand, one attached to a Pokémon. In a three-colour list this is the repair kit for a hand that opened all one colour. The buy warning below is about this card; the collection is genuinely pinched on it.
Hildax2
Set
SV: White Flare 084/086
Rarity
Uncommon
Type
Trainer - Supporter
Ability
Search your deck for an Evolution Pokémon and an Energy card, reveal them, and put them into your hand. Then, shuffle your deck.
Tournament
legal (Reg I)
Search your deck for an Evolution Pokémon and an Energy card, both to hand. Here that reads "the right Eeveelution plus the colour that casts it" off one Supporter, which is exactly the decision Rainbow DNA keeps asking. Two copies, and the same buy pinch as Crispin.
Trainers — Items
Buddy-Buddy Poffinx4
Set
SV05: Temporal Forces 144/162
Rarity
Uncommon
Type
Trainer - Item
Ability
Search your deck for up to 2 Basic Pokémon with 70 HP or less and put them onto your bench. Then, shuffle your deck.
Tournament
legal (Reg H)
Bench up to 2 Basic Pokémon with 70 HP or less from the deck. Eight of the deck's ten Basics qualify; Eevee ex at 200 is the exception. Four copies, the setup engine, and the reason the Basic count can stay at a lean ten.
Ultra Ballx4
Set
ME01: Mega Evolution 131/132
Rarity
Common
Type
Trainer - Item
Ability
You can use this card only if you discard 2 other cards from your hand. Search your deck for a Pokémon, reveal it, and put it into your hand. Then, shuffle your deck.
Tournament
legal (Reg I)
Discard 2 other cards from your hand, then search your deck for any Pokémon. This is what lifts what Poffin cannot: Eevee ex and every single-copy Eeveelution. Four copies carry the whole toolbox. The discard is a real cost in a deck of one-ofs, so pitch spare Energy, never the gems.
Switchx3
Set
ME01: Mega Evolution 130/132
Rarity
Common
Type
Trainer - Item
Ability
Switch your Active Pokémon with 1 of your Benched Pokémon.
Tournament
legal (Reg I)
Switch your Active Pokémon with 1 of your Benched Pokémon. The fortress play in one Item: attack, then step the damaged Eeveelution back behind Tera where nothing can touch it. Three copies because the rotation is the defence.
Night Stretcherx2
Set
SV: Shrouded Fable 061/064
Rarity
Uncommon
Type
Trainer - Item
Ability
Put a Pokémon or a Basic Energy card from your discard pile into your hand.
Tournament
legal (Reg H)
Put a Pokémon or a basic Energy card from your discard pile into your hand. The single-copy Eeveelutions only stay safe at one copy because this brings them back. Two at home; the third comes in with The Swap for game night.
Trainers — Tool & Stadium
Sparkling Crystalx1
Set
SV07: Stellar Crown 142/142
Rarity
ACE SPEC Rare
Type
Trainer - Pokémon Tool
Ability
When the Tera Pokémon this card is attached to uses an attack, that attack costs 1 Energy less. (The Energy can be of any type.)
Tournament
legal (Reg H)
The ACE SPEC, and one per deck total. Attacks used by the Tera Pokémon it is attached to cost 1 Energy less, of any type, which is what lets a three-colour deck cast three-colour attacks. It is a Tool, so it lives on one Pokémon; moving the plan means moving to a different body, not moving the card.
Battle Cagex2
Set
ME02: Phantasmal Flames 085/094
Rarity
Uncommon
Type
Trainer - Stadium
Ability
Prevent all damage counters from being placed on Benched Pokémon (both yours and your opponent's) by effects of attacks and Abilities from the opponent's Pokémon. (Damage from attacks is still taken.)
Tournament
legal (Reg I)
Stadium. Prevents all damage counters being placed on Benched Pokémon, on both sides, by effects of attacks and Abilities from the opponent's Pokémon. Damage from attacks still applies normally.
In Sun and Moon this is the answer to a whole deck. See Sun and Moon.
Energy
Basic Darkness Energyx6
Set
MEE: Mega Evolution Energies 7
Rarity
Common
Type
Energy - Basic
Tournament
legal
Six at home, the fuel for Moon Mirage and the ante for Onyx. Three of the six leave in Fire and Ice; the Energy line is most of what The Swap actually moves. Basic Energy never rotates, and any English print is legal.
Basic Fire Energyx4
Set
MEE: Mega Evolution Energies 2
Rarity
Common
Type
Energy - Basic
Tournament
legal
Four at home, seven on game night. Burning Charge fetches Basic Energy straight from the deck, which is why a three-colour list gets away with thirteen total.
Basic Psychic Energyx3
Set
MEE: Mega Evolution Energies 5
Rarity
Common
Type
Energy - Basic
Tournament
legal
Three, Sun and Moon only: the in Onyx and Amazez once the Crystal has dropped the off-colour cost. They trade seats with the Water on game night.
Basic Water Energy
Set
MEE: Mega Evolution Energies 3
Rarity
Common
Type
Energy - Basic
Tournament
legal
Three, Fire and Ice only: the half of Carnelian and Euclase. At home they live in the swap pile, not the deck box.
Game Plans
1. The Bench Is Safe, So Wait
Every Eeveelution ex is Tera, which prevents all attack damage while it is Benched. The only Pokémon that can be knocked out is the one currently Active.
So the deck's real skill is patience. Build the Bench, hold Eevee ex undeclared, and only commit to Umbreon or Espeon once you know what you are looking at. Rotate with Switch and it is genuinely possible to go a long game losing one body.
The exception, and it matters at home: Tera does not stop damage counters placed by Abilities. That is what Battle Cage is for.
2. Flareon ex Pays for Everything
Burning Charge is not a fallback attack, it is the Energy engine. Every turn it hits for 130 and puts two more Energy on the board from the deck, which is why the exotic colours can sit at three copies each and still be findable.
Lead with it, keep it Active while the Bench fills, and let it fund whichever gem attack the game asks for.
3. Three Knockouts and It Is Over
Every ex here gives up 2 Prizes. Three knockouts and Fox has lost, which is a big change from a single-prize deck and the honest cost of the archetype.
Two mitigations. Tera keeps the Bench untouchable, so only sloppy rotation loses bodies. And in Fire and Ice, the non-ex Glaceon gives up one Prize rather than two, which is the only real structural fix available.
4. Choosing the Crystal's Home
One Sparkling Crystal, one Pokémon, and the choice is not obvious.
On Flareon ex it makes Burning Charge a one-Energy 130 with two Energy attached. Best default, best in a long game.
On Umbreon ex it turns Onyx into a two-Energy free Prize.
On Espeon ex it makes Amazez castable at all from this Energy line.
Decide by asking whether the game is a race or a grind. Races want it on Flareon; grinds want it on the gem.
What To Buy
Counts are the maximum across both modes, so one purchase covers Sun and Moon and Fire and Ice together. Flareon ex is listed at 4 because Fire and Ice wants the fourth; Umbreon ex at 3 because Sun and Moon wants the third.
Card
Own
Need
Buy
Note
Eevee SV: Prismatic Evolutions 074/131
3
3
✓
Boosted Evolution, the turn-one play
Eevee SV06: Twilight Masquerade 135/167
2
1
✓
Ascension, the toolbox tutor
Eevee ex SV: Prismatic Evolutions 075/131
2
2
✓
Rainbow DNA
Flareon ex SV: Prismatic Evolutions 014/131
4
4
✓
3 for Sun and Moon, 4 for Fire and Ice
Umbreon ex SV: Prismatic Evolutions 060/131
0
3
3
the plain Double Rare, never the 161 Special Illustration
Espeon ex SV: Prismatic Evolutions 034/131
0
1
1
Sun and Moon only
Glaceon SV: Prismatic Evolutions 025/131
2
2
✓
the non-ex 025, not Glaceon ex 026
Hoothoot SV07: Stellar Crown 114/142
4
4
✓
Noctowl SV07: Stellar Crown 115/142
3
2
✓
Jewel Seeker, always on
Lillie's Determination ME01: Mega Evolution 119/132
11
4
✓
shared
Boss's Orders [Ghetsis] ME01: Mega Evolution 114/132
10
3
✓
shared
Crispin SV07: Stellar Crown 133/142
4
3
✓
the pinch, see below
Hilda SV: White Flare 084/086
7
2
✓
an Evolution and an Energy, one card
Buddy-Buddy Poffin SV05: Temporal Forces 144/162
9
4
✓
shared
Ultra Ball ME01: Mega Evolution 131/132
10
4
✓
carries the whole toolbox
Switch ME01: Mega Evolution 130/132
7
3
✓
shared
Night Stretcher SV: Shrouded Fable 061/064
10
3
✓
shared
Battle Cage ME02: Phantasmal Flames 085/094
2
2
✓
Sun and Moon only; 085, not the 116 secret print
Sparkling Crystal SV07: Stellar Crown 142/142
1
1
✓
ACE SPEC
Basic Darkness Energy MEE: Mega Evolution Energies 7
38
6
✓
any English printing
Basic Fire Energy MEE: Mega Evolution Energies 2
18
7
✓
any English printing
Basic Psychic Energy MEE: Mega Evolution Energies 5