Arjun, the Shifting Flame

变幻火焰亚俊 (Arjun, the Shifting Flame) (zhs)

Legendary Creature - Sphinx Wizard | Power/Toughness: 5 / 5 (CMC 6)
Flying
Whenever you cast a spell, put the cards in your hand on the bottom of your library in any order, then draw that many cards.