Primal Adversary is a mythic Creature — Wolf card from Innistrad: Double Feature (DBL), collector number 194. Current market price: $1.30 (foil $11.51), TCGplayer market prices via Scryfall.
Trample When this creature enters, you may pay {1}{G} any number of times. When you pay this cost one or more times, put that many +1/+1 counters on this creature, then up to that many target lands you control become 3/3 Wolf creatures with haste that are still lands.