Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Whenever Grim Flayer deals combat damage to 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.
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