Foreboding Steamboat is a rare Artifact — Vehicle card from Murders at Karlov Manor Commander (MKC), collector number 338. Current market price: $0.25, TCGplayer market prices via Scryfall.
When this Vehicle enters, each player chooses two nontoken, non-Vehicle creatures they control. Exile them until this Vehicle leaves the battlefield. Whenever this Vehicle attacks, put a card exiled with it into its owner's graveyard. If you do, investigate. Crew 2