Nico Robin

Haste
Whenever Nico Robin "Devil Child" attacks,
create a Treasure token. (It's an artifact with "{t}, Sacrifice this artifact: Add one mana of
any color.")
Whenever you sacrifice a Treasure, Nico Robin
"Devil Child" gets +1/+0 until end of turn.
"Fools who don't respect the past are doomed to
repeat it."