MAGIC: THE GATHERING
Search your library for a green creature card, reveal it, put it into your hand, then shuffle your library.
At the beginning of your next upkeep, pay . If you don't, you lose the game.
Don't underestimate the power of this zero mana spell. We first saw it unleashed when Luis Scott-Vargas took down Pro Tour Berlin with the breakout Elves! deck. Since then it has been used to find Progenitus to combo with Blazing Shoal, and Primeval Titan for Valakut shenanigans.