
Trample
Whenever this creature 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 — This creature gets +2/+2 as long as there are four or more card types among cards in your graveyard.
Grim Flayer has 8 printings, first in Eldritch Moon (2016). EDHREC ranks it #11,623 among Commander cards. It appears most in Winter, Cynical Opportunist decks (3,225 on EDHREC). 1 public deck on TCG runs it. It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.