Dragon's Rage Channeler
Creature - Human Shaman | Power/Toughness: 1 / 1 (CMC 1)
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, Dragon's Rage Channeler gets +2/+2, has flying, and attacks each combat if able.