Enchantment, 2WW (4)

At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps he or she controls.
Illus. Richard Thomas

10/4/2004: Amount of damage is determined when the ability resolves and not when it is placed on the stack.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern