Infernal Darkness is a rare Enchantment card from Ice Age (ICE), collector number 135. Current market price: $6.56, TCGplayer market prices via Scryfall.
Cumulative upkeep—Pay {B} and 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) If a land is tapped for mana, it produces {B} instead of any other type.