Fujiwara no Mokou

Haste, Flying
Whenever Fujiwara no Mokou leaves the field, she deals 2 damage to all other characters. Fujiwara no Mokou returns to the battlefield 2 turns after she left it.
She's considered to be very powerful, given her long life, the power she earned through her life, and her immortal status since she can keep fighting until she can no longer stand the pain.