Mega Altaria ex Espeon Deck Guide: Sleep Meta Build

Updated October 19, 2026: we re-checked every card against the Limitless Pocket database and replaced the old tracker numbers with Limitless's Team Rocket's Ambition data. Two things in the old version were wrong: Mega Harmony can't reach 160 or 190, because the Pocket Bench holds three Pokémon, and Pocket has no mulligans. Igglybuff's role was also missing.

The Mega Altaria ex Espeon deck list

This is the 20 cards itachi1820 used to win PMPT #46 (first of 355 players, September 12), and Sora Aoi won a 257-player event with the exact same list.

List: itachi1820, PMPT #46, via Limitless; card text from the Limitless TCG Pocket database, October 19, 2026.

The only change we've seen in a top list is JLNG's second place at PMPT #44, which runs Cyrus instead of Field Blower. That's the flex slot: Field Blower if Tools and Stadiums are bothering you, Cyrus if you'd rather drag up a damaged Benched Pokémon.

Why each Sleep piece matters

The deck has five ways to put the opponent to sleep: Igglybuff, Swablu, Espeon and both Darkrai (its own attack, Dark Slumber, sleeps too). A sleeping Pokémon can't attack or retreat, and its owner flips a coin between turns to wake up. Every turn it stays asleep, each Darkrai you have in play deals another 20.

Images: Pokémon TCG Pocket card art (B1-196 Swablu, A4a-059 Igglybuff, B2b-040 Darkrai), via the Limitless TCG Pocket database.

Igglybuff is the reason the deck works going first. The player who starts gets no Energy on turn one, but Sleepy Lullaby costs nothing, so Igglybuff can put the opposing Active to sleep before anything else happens. One copy is enough because it's a 30 HP Basic that mostly does one job.

Eevee and Espeon are the main engine. Eevee's Boosted Evolution lets it evolve on your first turn if it's Active, and Hypnoblast does 40 and sleeps for a single Psychic Energy. Training Area makes that 50, because Espeon is a Stage 1.

Image: Pokémon TCG Pocket card art (B3a-020 Espeon), via the pokemontcgpocket.app card database.

Mega Altaria ex is a 190 HP Stage 1 that hits for 40 plus 30 for each of your Benched Pokémon. With the Bench capped at three, the ceiling is 130, or 140 with Training Area, before Bad Dreams adds its end-of-turn damage. That's enough to take most things in one hit. The catch is the Mega rule: if it's Knocked Out, your opponent gets 3 points. Bring it out when it can finish the game, not as a turn-two wall.

Image: Pokémon TCG Pocket card art (B1-102 Mega Altaria ex), via the pokemontcgpocket.app card database.

How often you'll see each piece

Pocket deals five cards and always gives you at least one Basic, so there's no mulligan to plan around. What matters is how often your opener lines up. We ran 200,000 simulated openings of this exact list, counting only natural draws (no Poké Ball or Research, so real games do a bit better).

Chart: ShonenTCG simulation of itachi1820's list, 200,000 runs, October 19, 2026. Source: card counts from Limitless; Pocket opening-hand rule from Pokémon Zone.

The numbers back up how the deck actually plays. Roughly one game in four you'll have a free turn-one Lullaby, and about as often you'll have Eevee and Espeon together in your first six cards. Swablu plus Mega Altaria ex is the hard one: only about a quarter of games have both by your eighth card. So play every game as a Sleep deck first, and treat Altaria as the finisher that arrives when it arrives. Don't hold Espeon back waiting for it.

Matchups on Limitless

Limitless has tracked the Mega Altaria ex Espeon deck across 189 tournaments and more than 14,000 players in Team Rocket's Ambition Standard.

Source: Limitless matchup page for Mega Altaria ex Espeon, B4a Standard, October 19, 2026.

The good news first. Against Mega Lucario ex, the second most played deck, it wins about seven games in ten, so if your ladder or local is full of Lucario this is the right pick. Hoopa ex Mega Absol ex is the problem: this deck loses that one nearly three times in four, and Vespiquen ex Shuckle ex isn't much better. If those are what you keep facing, switch decks rather than tech.

The other side has noticed what the deck does. In an r/PTCGP thread on beating Espeon/Altaria, u/GradeNo893 advised: "If your deck doesn’t have space for anti sleep stuff hold your evos until it’s time to kill". That's the counter-play to watch for, an opponent with one Basic up front and everything else in hand. The top-voted answer in the same thread was shorter: "I FLIP HEADS 😎" (u/EfficientYam1115). Fair enough; every Sleep turn is a coin flip on their end.

Here's the Darkrai, Igglybuff and Espeon build in action, recorded in June before Team Rocket's Ambition:

What we'd change

Nothing in the core. We'd copy the winning list card for card and only touch the Field Blower slot: Cyrus if you face benched setups you want to pick off, Field Blower if Training Area keeps helping your opponent's Stage 1s more than yours. Don't add a second Mega Altaria ex. Two copies of the only Pokémon that gives up 3 points just means more dead draws.

If you're newer to Pocket, the how-to-play guide covers Energy and Special Conditions, and our Pokémon TCG Pocket meta tier list shows where the other decks above sit. If Lucario is the deck you'd rather be on, here's our Mega Lucario ex deck guide; just know it drops roughly seven games in ten to this one.

How we checked this: on October 19, 2026 we re-read every card on the Limitless TCG Pocket database, pulled the deck share, top lists and matchups from Limitless (Team Rocket's Ambition Standard), checked the Pocket rules on Pokémon Zone, and simulated 200,000 openings of the winning list with a short script.