Ancient Vendetta

• WWizards of the Coast2025-02-07
  Official Ruling
  The ability has no effect on permanents with the chosen name that are on the battlefield.
• WWizards of the Coast2025-02-07
  Official Ruling
  You don’t have to exile each card you find with that name. If you want to leave one in their graveyard, for example, you may.
• WWizards of the Coast2025-02-07
  Official Ruling
  You don’t have to choose the name of a card that you’ve already seen this game; you may guess at a card you think your opponent might have in their hand or library, if you’d like.
• WWizards of the Coast2025-02-07
  Official Ruling
  Unlike similar cards, Ancient Vendetta allows you to choose the name of a basic land. Note that you may only search for up to four cards with the chosen name, even if you find more of them.
• WWizards of the Coast2025-02-07
  Official Ruling
  You target a player as this spell is put on the stack, but you don’t name a card until it resolves. Notably, this means that players don’t get to respond to the spell knowing what card you will name.

Rulings via Scryfall