0.1% of the meta · Updated July 25, 2026
Signature card
Tapu Koko ex
Shiny Super Rare
#3 — Kirteppat
Lagoon Serenity Format (OAK FA) · 8W-2L
#3 — Kirteppat
Lagoon Serenity Format (FA, RR or Shiny Choice) · 7W-2L
#2 — WxChAn
Lagoon Serenity Format (FA Choice Prize) · 6W-2L-1T
Tapu Koko ex self-charges energy with Plasma Hurricane, then unloads Mach Bolt for 90 damage once three energy are attached. The win condition is accumulating energy fast enough to attack every turn while Miraidon ex and Raikou ex provide backup firepower.
Open by placing Tapu Koko ex active and using Plasma Hurricane to deal 20 damage while pulling a Lightning energy from the Energy Zone onto itself. Electric Generator accelerates this further. After two or three turns you reach three energy and can fire Mach Bolt for 90. Mid-game, Supporting Miraidon ex and Raikou ex on the bench ensure coverage if Tapu Koko ex is knocked out. Pichu provides an early Basic to stall. Electrical Cord and Starting Plains give additional utility, while Giant Cape and Rocky Helmet protect Tapu Koko ex during the charging phase.
Plasma Hurricane ramp into Mach Bolt
Plasma Hurricane 20 dmg + Energy Zone attach; Mach Bolt 90 dmg once at 3 energy
Two Plasma Hurricane turns plus one Electric Generator attachment can reach 3 energy by turn 3
Start Plasma Hurricane turn 2 to deal 20 damage and pull one Lightning energy from the Energy Zone. Pair with Electric Generator to reach 3 energy in as few turns as possible. Once Mach Bolt is online, you deal 90 every turn at a 3-energy threshold — use Professor Turo to refresh the hand if energy attachment stalls.
With Tapu Koko ex as the primary attacker, bench Miraidon ex and Raikou ex as follow-up threats. If Tapu Koko ex is knocked out for 2 opponent points, immediately counter-attack with a pre-charged backup to reclaim tempo. Electrical Cord and Cyrus let you manipulate the board to set up the cleanest retaliatory KO on the opponent's best attacker.
Before Tapu Koko ex reaches 3 energy, it can only deal 20 damage. At 130 HP, targeted burst attackers can eliminate it early for 2 points. Mewtwo ex and Dialga ex decks (25% win rates against this deck) succeed precisely because they can one-shot or two-shot Tapu Koko ex before Mach Bolt is online.
Tapu Koko ex's damage output depends entirely on reaching 3 attached energy. Trainers that shuffle energy off the active Pokemon or reset the attachment count delay Mach Bolt by one or more full turns. Each disrupted turn is a turn Tapu Koko ex deals only 20 damage, which is insufficient to threaten most ex targets.
Miraidon ex and Raikou ex on the bench are also ex Pokemon. If you can use Sabrina to drag one up for a KO, you score 2 points from a Pokemon that has not yet charged. This forces the Tapu Koko ex player to defend their bench rather than attack, breaking the charging rhythm entirely.
Energy acceleration
Secondary attacker
Threats — Weak Against
Based on type weakness analysis of core cards. View full matchup matrix →
