Grim Flayer 2.0

Trample
Whenever Grim Flayer attacks a player, surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library
in any order.)
Delirium-Grim Flayer gets +2/+2 as long
as there are four or more card types among cards in your graveyard.