Twins of Maurer Estate is a common Creature — Vampire card from Shadows over Innistrad (SOI), collector number 142. Current market price: $0.10 (foil $0.48), TCGplayer market prices via Scryfall.
Madness {2}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)