Niaza, Wild Incarnate

: Whenever a creature enters the battlefield under your control, put a loyalty counter on Niaza, Wild Incarnate.
-2: Put either a 1/1 green snake creature token with deathtouch onto the battlefield or a 2/2 green wolf creature token onto the battlefield.
-13: Put as many creatures onto the battlefield with converted mana cost 6 or less onto the battlefield.