Dragon's Rage Channeler (Eternal Weekend 2023 Promo) [Eternal Weekend]

Whenever you cast a noncreature spell, surveil. (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.