Gankoro, Wandering Warrior

When a Knight enters the battlefield under your control you may draw one card and give Gankoro
your choice of vigilance, flying, double strike, deathtouch, indestructible, lifelink, menace, or
trample until the end of the turn.
"He wanders the world constantly bettering himself
and any he finds worthy of his training, forever improving, forever growing stronger"