Tendrils of Agony (Japanese Foil Etched) [Strixhaven: Mystical Archive] Phyrexia Return that "Mist Valley" card

Return that "Mist Valley" card to its owner's hand

you can Normal Summon it to have it be treated as an Effect Monster with this effect:

Then that player discards all cards with that name revealed this way

Set: Antiquities Type: Artifact Creature — Golem Rarity: Rare Cost: {9} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

Some convictions are so strong that the world must break to accommodate them

Tendrils of Agony (Japanese Foil Etched) [Strixhaven: Mystical Archive] Phyrexia Return that "Mist Valley" cardSet: Strixhaven: Mystical Archive Type: Sorcery Rarity: Rare Cost: {2}{B}{B} Target player loses 2 life and you gain 2 life. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)