Tainted Pact (Japanese) [Strixhaven: Mystical Archive] Treefolk Shaman the next instant or sorcery

the next instant or sorcery spell you cast this turn costs {X} less to cast

then exiles cards from the top of their library until they exile a nonland card with a different name than that spell

and Phyrexians

it produces three times as much of that mana instead

Inexorable as an avalanche

Tainted Pact (Japanese) [Strixhaven: Mystical Archive] Treefolk Shaman the next instant or sorcerySet: Strixhaven: Mystical Archive Type: Instant Rarity: Mythic Cost: {1}{B} Exile the top card of your library. You may put that card into your hand unless it has the same name as another card exiled this way. Repeat this process until you put a card into your hand or you exile two cards with the same name, whichever comes first.