Shu Yun, the Silent Tempest
{2}{U}
Legendary Creature -- Human Monk
3/2
Prowess (Whenever you cast a noncreature spell, ~this~ gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, you may pay {r/w}{r/w}. If you do, target creature gains double strike until end of turn.