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 (This creature can't be blocked except by creatures with flying or reach.), and attacks each combat if able.