Bloodthirsty Vermin

{x}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.
———{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
No town is safe from the hoard of these crimson wings. Despite the bats even feeding on themselves, there appears to be no end to their hungering colony. {line}Linden Koss