Conduit of Worlds is a rare Artifact card from Phyrexia: All Will Be One (ONE), collector number 390. Current market price: $4.31 (foil $8.10), TCGplayer market prices via Scryfall.
You may play lands from your graveyard. {T}: Choose target nonland permanent card in your graveyard. If you haven't cast a spell this turn, you may cast that card. If you do, you can't cast additional spells this turn. Activate only as a sorcery.