
Whenever a creature an opponent controls dies, you may pay {1}. If you do, create a 1/1 white Spirit creature token with flying.
Haunted Library has 3 printings, first in Crimson Vow Commander (2021). EDHREC ranks it #9,378 among Commander cards. It appears most in Millicent, Restless Revenant decks (4,005 on EDHREC). 1 public deck on TCG runs it.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.