Heart Breaker

At the beginning of your upkeep, Heart Breaker
deals 1 damage to you unless you sacrifice a
nonland, nontoken permanent or discard a card.
Whenever Heart Breaker deals damage to a player, create a token that's a copy of Heart Breaker
except it's an Aura Curse enchantment with
enchant player and each instance of "you"
replaced with "enchanted player" attached to
that player.