This seems fun as a big mana payoff maybe but it just doesn’t seem efficient or reliable enough for most of the game.
It’s a 2 mana draw 1, at cmc 3 it’s probably a Divination, and 4 probably also just a draw 2. Sorcery speed.
It’s then a minimum of 5 cmc to cast the spell for free, and you have to go 4/4 on card types which seems incredibly unlikely. More likely you’d get 2-3 card types so this thing seems at best a 5 mana sorcery speed draw 3 then.
Never truly a dead draw which is nice and the more you can pump into this the more it reads as a draw 4 + cast a spell for free. It just doesn’t feel good enough most of the time.