Mox Crypt

At the beginning of your upkeep, Roll a dice. If
you lose the roll, Mox Crypt deals 1 damage to
you.
If Mox Crypt would enter the battlefield, you
may discard a nonland card instead. If you do,
put Mox Crypt onto the battlefield. If you
don't, put it into its owner's graveyard.
{t}: Add one mana of any color.