Mega Altaria / Gourgeist

Why this deck is in this tier

Highly explosive with strong offensive synergy.

Strengths (key points)

• High damage with Mega Altaria EX.
• Strong stadium synergy.
• Gourgeist provides secondary pressure.
• Jirachi helps against small Pokémon.
• Flexible builds.
• Good attack chaining.

Weaknesses (to watch)

• Stadium dependent.
• Setup can be slow (Swablu → Altaria → Mega Altaria).
• Gourgeist weaker without boost.
• Weak to fast decks.
• Hand management tricky.
• Less consistent than variants.

Card list

• ×2 Mega Altaria ex (B1-102)
• ×2 Gourgeist (B1b-72)
• ×2 Pumpkaboo (B1b-71)
• ×2 Swablu (B1-196)
• ×2 Chingling (B1-109)
• ×1 Jirachi (B1-106)
• ×2 Professor's Research (P-A-7)
• ×1 Mars (A2-155)
• ×1 Lt. Surge (A1-226)
• ×1 Cyrus (A2-150)
• ×1 Lisia (B1-226)
• ×1 May (B1-223)
• ×1 Poké Ball (P-A-5)
• ×1 Training Area (B1b-153)

Other S Tier decks

• Mega Absol EX / Darkrai EX / Hoopa EX
  I rank it in S tier because it can create immediate pressure with several complementary attackers. The list has an excellent balance between damage, mobility, disruption and consistency.
• Mega Sceptile EX / Butterfree
  This is probably one of the most consistent. Caterpie, the draw engine, Quick-Grow Extract and the two Stadiums significantly accelerate the setup of Mega Sceptile EX.
• Vespiquen ex / Shuckle ex
  The deck can handle many matchups thanks to Shuckle ex in the early game and Vespiquen ex's 140 damage. The ability to discard a damaged or obsolete Pokémon makes its game plan particularly stable.
• Magnezone / Oricorio / Miraidon ex
  Deck heavily represented in top decks, with Miraidon acting as a flexible finisher and strong sleep-counterplay.
• Mega Sceptile ex / Pheromosa / Teal Mask Ogerpon ex
  S tier: tournament-winning deck (500+ players), with strong Bench pressure, Fragrant Forest to stabilize Grass Basics and Ogerpon to improve certain matchups. It is a very good for climbing to Masterball.
• Mega Sceptile / Kartana / Chingling
  S tier: this deck is presented as the winner of a 500+ player tournament, with strong damage, stadium control, and several attack lines. The Grass stadium replaces Poké Ball in this version and gives the deck excellent consistency.

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