Altar of the Pantheon is a common Artifact card from The List (PLST), collector number THB-231. Current market price: $3.15, TCGplayer market prices via Scryfall.
Your devotion to each color and each combination of colors is increased by one. {T}: Add one mana of any color. If you control a God, a Demigod, or a legendary enchantment, you gain 1 life.