
Players can't gain life.
At the beginning of each player's upkeep, that player loses half their life, rounded up.
Havoc Festival has 1 printing, first in Return to Ravnica (2012). EDHREC ranks it #8,861 among Commander cards. It appears most in Valgavoth, Harrower of Souls decks (1,580 on EDHREC). It has 5 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.