Kaiphora, Forest Dweller

Whanever another non token or a non Beast,Ape, Snake, Elk, Bear, Boar creature enters the battlefield unders opponent control, put a -1/-1 counter on it, unless that opponent choises put a
+1/+1 counter on Kaiphora, Forest Dweller.
At the beggining of your upkeep you may put a
Beast, Ape, Snake, Elk, Bear, or a Boar
with converted mana coast 3 or less of your
graveyard to the battlefield tapped.