Dragon's Rage Channeler MH2-121/5075 (The List Reprints)

Whenever you cast a noncreature spell, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) Delirium — As long as there are four or more card types among cards in your graveyard, this creature gets +2/+2, has flying, and attacks each combat if able.

NM - $4.40
LP - $3.50
MP - $2.60
HP - $1.80
DMG - $0.90