Mega Gardevoir EX - Set: Primal Clash
Top 12 in Top 20 Strongest Pokemon Cards
Mega Gardevoir EX has an attack called the Brilliant Arrow that does 30 damage times the amount of energy attached to all the players' Pokémon. This attack has no damage cap, meaning it can potentially deal 400 damage and one-shot any of the opponent's Pokémon if set up correctly. One downside to Mega Gardevoir EX is the amount of energy needed and the difficulty in building it up. But the possible damage output makes this card worth it despite the time and risks involved.