Mega Zygarde ex

Gaia Wave (200): During your opponent's next turn, this Pokémon takes 30 less damage from attacks (after applying Weakness and Resistance).

Nullifying Zero: For each of your opponent's Pokémon, flip a coin. If heads, this attack does 150 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)