
When this creature enters, it deals 1 damage to each opponent.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, this creature deals 1 damage to that player.
Gibbering Fiend has 1 printing, first in Shadows over Innistrad (2016). EDHREC ranks it #14,172 among Commander cards. It appears most in Zurzoth, Chaos Rider decks (1,925 on EDHREC). It has 5 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.