Cavepower

Every turn play, rock, paper, or scissors with target opponent. If you lose two out of three times, all creatures you control get "Every turn, you lose 1 life."
{t}: Add {2} to your mana pool.
"I have seen much, the vast planes of Zendikar, the eons of life Ravnica has gone through, but not once have I seen a man hiding a nuclear generator in the cave." -- Gasta the Old