Rust Tick

The clever bit lives in the line nobody reads twice: you may decline to untap this creature during your untap step. That self-tapping option converts a one-shot tap effect into a soft lock. Aim the ability at a target artifact, leave the Insect tapped, and the artifact stays suppressed indefinitely for the price of keeping a 1/3 parked out of combat. The pin holds exactly as long as the body stays tapped, so the opponent's outs are narrow: destroy Rust Tick itself, untap the locked artifact by some other route, or find a way to force this creature to wake up. It is a stax piece wearing a chump blocker's stat line, built around the asymmetry of a permanent that keeps its own engine running by simply choosing to stay asleep. The cost it pays for ongoing denial is total inertia: every turn the lock holds, this is a permanent doing nothing but pointing at one artifact, and the activation tax means you cannot redirect it without handing the original target a free untap on the very next turn. The lineage runs through soft-prison effects that pin a single permanent without answering it, the kind of denial that buys time rather than removes a threat. As a body it is fragile and passive; as a recurring tax on a key mana rock or combo piece, it holds until the opponent draws into artifact removal or finds a second untap source.