Rigel, the Cosmic Claw

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you draw a card for the first time each turn, exile the top card of your library. Until the end of your turn, you may cast that card and it costs {u} less to cast.
"The stars are full of possibilities, work with them and you will be undefeatable." -Tamiyo