Trench Behemoth is a rare Creature — Kraken card from Commander Legends (CMR), collector number 366. Current market price: $0.75, TCGplayer market prices via Scryfall.
Return a land you control to its owner's hand: Untap this creature. It gains hexproof until end of turn. Landfall — Whenever a land you control enters, target creature an opponent controls attacks during its controller's next combat phase if able.