Kira, Fallen Celestial

Flying
If an ability of a curse you control triggers, you
may pay {w}. If you do, copy that ability. You may choose new targets for the copy.
Whenever Kira, Fallen Celestial attacks, curse defending player. (Create a black Aura Curse enchantment token that's attached to that player. it
has enchant player and "At the beginning of your
upkeep, you lose 1 life.")