Liu Bao, Mentor of Champions

{1}{w}: Target creature you control gains your choice of flying, first strike, lifelink, prowess or vigilance until end of turn.
{1}{w}, {t}, Exert: Target legendary creature you control gains your choice of double strike or indestructible until end of turn.
"...and that, my young padawan, is how you do the crouching reverse double roundhouse, hail
Ojutai kick."