Azumarill

By keeping still and listening intently, it can tell what is in even wild, fast-moving rivers.

Tackle (20)

Bubble Shower (30): Flip a coin. If heads, the Defending Pokémon is now Paralyzed and this attack does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)