Entomber Exarch is a uncommon Creature — Phyrexian Cleric card from Foundations Jumpstart (J25), collector number 434. Current market price: $0.21, TCGplayer market prices via Scryfall.
When this creature enters, choose one — • Return target creature card from your graveyard to your hand. • Target opponent reveals their hand. You choose a noncreature card from it. That player discards that card.