Curse of Night's Dread

Enchant player
If a source would deal damage to enchanted
player, that player loses life equal to twice the
life they've lost. At the beginning of your upkeep, target opponent discards a card for each
Swamp you control.
When the sun goes down and the shadows wake, fear
the darkness for your soul they'll take. You cannot
hide or hope to run, the hour of fear has just begun.