Curse of the Sewer

Enchant player
At the beginning of enchanted player's upkeep,
put a time counter on Curse of the Sewer. Then, enchanted player chooses one, where X is equal
to the number of time counters on Curse of the
Sewer:
•Enchanted player sacrifices X creatures.
•Enchanted player discards X cards.
•Enchanted player loses two times X life.