Lasyd Prowler is a rare Creature — Snake Ranger card from Tarkir: Dragonstorm (TDM), collector number 149. Current market price: $0.27 (foil $0.30), TCGplayer market prices via Scryfall.
When this creature enters, you may mill cards equal to the number of lands you control. Renew — {1}{G}, Exile this card from your graveyard: Put X +1/+1 counters on target creature, where X is the number of land cards in your graveyard. Activate only as a sorcery.