Creature — Werewolf 3/3 (Color Indicator: Green)
Rare
Each other creature you control that's a Werewolf or a Wolf gets +1/+1.
At the beginning of your end step, put a 2/2 green Wolf creature token onto the battlefield.
At the beginning of each upkeep, if a player cast two or more spells last turn, transform Howlpack Alpha.
He can deny his true nature for only so long.
Illus. Svetlin Velinov

9/22/2011: A creature that is both a Werewolf and a Wolf will only get +1/+1 from Howlpack Alpha.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Extended (Type 1.X)
Legal in Standard (Type 2)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern