Gustha's Scepter is a rare Artifact card from Alliances (ALL), collector number 120. Current market price: $6.45, TCGplayer market prices via Scryfall.
{T}: Exile a card from your hand face down. You may look at it for as long as it remains exiled. {T}: Return a card you own exiled with this artifact to your hand. When you lose control of this artifact, put all cards exiled with this artifact into their owner's graveyard.