Decayed Depths

If Decayed Dephts is in your opening
hand and you‘re not the starting player,
you may begin the game with Decayed
Dephts on the battlefield with a luck
counter on it. If you do, exile a card from
your hand.

{t}: Add {c}. If Decayed Dephts has a luck counter on it, instead add one mana of any color.
(Gemstone Caverns)