
Players can't gain life.
Damage can't be prevented.
All damage is dealt as though its source had wither. (A source with wither deals damage to creatures in the form of -1/-1 counters.)
Everlasting Torment has 3 printings, first in Shadowmoor (2008). EDHREC ranks it #5,228 among Commander cards. It appears most in Auntie Ool, Cursewretch decks (18,079 on EDHREC). 2 public decks on TCG run it. It has 8 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.