Uurg, Spawn of Turg
Legendary Creature — Frog Beast
Uurg, Spawn of Turg's power is equal to the number of land cards in your graveyard. At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) {B}{G}, Sacrifice a land: You gain 2 life.