Margo, Disdainful Prodigy

Hexproof from enchanted players
When Margo, Disdainful Prodigy enters the
battlefield, return target Curse from the
graveyard to the battlefield attached to
target player.
Magecraft — Whenever you cast or copy
an instant or sorcery spell, each opponent with
a Curse attached to them loses 2 life for each
Curse attached to them.