Stormy, Thunderous Cat

+2: You gain one life for each cat you control. Stormy, Thunderous Cat deals 3 damage to each creature your opponents control.
-3: Stormy, Thunderous cat deals 10 damage divided among any number of targets.
-10: Stormy, Thunderous cat deals x d damage to target opponent, where x is the amount of damage Stormy, Thunderous cat has dealt.