Kaathar, the Frenzied

Wolf and Werewolf creatures you control
have +3/+3, Trample, and protection from
spells.
Werewolf creatures you control have "{t}: Target Werewolf creature gets a +X/+X counter where
X is equal to this creature's power."
At the beginning of your upkeep, if an opponent
cast two or more spells last turn, transform
Kaathar.