Threaten

Cards that take control of an opponent's creature or permanent already on the battlefield until end of turn, typically untapping it and granting haste so you can swing or feed it to a sacrifice outlet before handing it back. Threaten and Act of Treason are the canonical single-target versions; Zealous Conscripts grabs any permanent on entering; Captivating Crew repeats the effect as an activated ability; Mob Rule and Kari Zev's Expertise scale up or pair the steal with extra value. These act on permanents on the battlefield, not on the stack, so they are not stack interaction. Distinct from permanent control-change effects with no duration limit, which keep the creature indefinitely rather than returning it at end of turn.