Pronna, Mystic of Nal

Wolf Domesticator (You may have another creature as a commander as long as that creature is a wolf.)
At the beginning of your end step, you may create a 0/1 green Wolf Pup creature token for each two Wolf creatures you control.
At the beginning of your upkeep, you may sacrifice a Wolf Pup. If you do, create a 2/2 green wolf creature token.