
Whenever a player casts a black spell, you may pay {1}. If you do, you gain 1 life.
Throne of Bone has 18 printings, first in Unlimited Edition (1993). EDHREC ranks it #24,610 among Commander cards. It appears most in Tor Wauki decks (2 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.