Boosted Sloop

Most Vehicles ask you to weigh their crew cost against the tempo of tapping down a body, and most charge enough that the math only works when the payoff is a big swing. This one inverts the ledger. Crew 1 is nearly free, satisfiable by a single token or the smallest mana dork, so the tax on attacking with the Sloop itself is close to nothing. But the loot trigger does not actually care whether the Vehicle is crewed at all: "Whenever you attack" fires on the declaration of any attackers, so a totally inert artifact sitting on the board still filters a card every time some other creature swings. The engine is bolted to your attack step, not to the Sloop's involvement in it. When you do crew it, menace pushes the 3/3 through most ground stalls, and because the trigger resolves on declaration rather than on damage, you loot into a wall or a chump block all the same. You are paid for committing to combat, not for winning it. That makes it a natural fit for graveyard shells that want to bin cards on their own terms and for aggressive decks that need to smooth their draws while still applying pressure. One caveat the frame invites you to forget: crewing turns it into a creature until end of turn, so it stays exposed to instant-speed creature removal through your postcombat main phase, not just during combat.