Mai, Jaded Edge (TLA #147)

{1}{R}

Legendary Creature — Human Noble

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Exhaust — {3}: Put a double strike counter on Mai. (Activate each exhaust ability only once.)

"Finally, something to do."

1/3

Illustrated by Toraji