As long as Aggron ex is your Active Pokémon, your opponent's Basic Pokémon can't attack or use any Poké-Powers or Poké-Bodies.

Choose 2 of your opponent's Pokémon. This attack does 30 damage to each of them. (Don't apply Weakness and Resistance for Benched Pokémon.)

During your next turn, Aggron ex can't use Mega Burn.