Shu Yun, the Silent Tempest

Shu Yun, the Silent Tempest

Legendary Creature - Human Monk | Power/Toughness: 3 / 2 (CMC 3)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, you may pay . If you do, target creature gains double strike until end of turn.