Kricketune.

If you have exactly 1 card in your hand, this attack does 100 more damage. If you have exactly 3 cards in your hand, your opponent's Active Pokémon is now Confused. If you have exactly 6 cards in your hand, this attack does 30 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)