Gyarados (Skyridge 11/144)
Poké-POWER Flame Vapor

When you play Gyarados from your hand to evolve your Active Pokémon, you may flip 2 coins. For each heads, discard an Energy card attached to the Defending Pokémon.

Water Colorless Colorless Colorless
Dragon's Vengeance

If Gyarados has 7 or more damage counters on it, this attack's base damage is 100.