Anakin, Fallen Jedi

Haste
Whenever Anakin, Fallen Jedi attacks, you may sacrifice another creature. If you do, Anakin deals damage equal to the sacrificed creature's power to
any target. If the sacrificed creature was
Legendary, put a +1/+1 counter on Anakin,
Fallen Jedi.
"I hate you!"— Anakin to Obi-Wan during their
dual on Mustafar