Dark Intimations is a rare Sorcery card from Aether Revolt (AER), collector number 128. Current market price: $0.19 (foil $0.53), TCGplayer market prices via Scryfall.
Each opponent sacrifices a creature or planeswalker of their choice, then discards a card. You return a creature or planeswalker card from your graveyard to your hand, then draw a card. When you cast a Bolas planeswalker spell, exile this card from your graveyard. That planeswalker enters with an additional loyalty counter on it.