Viridian Longbow

The equipment grants a brand-new tap ability rather than leaning on anything the creature already does, which is the whole point: bolt the Longbow onto a wall, a defensive body, a spent attacker, any creature whose tap you can spare, and that body becomes a sorcery-speed-installed, instant-speed source of one point of damage on demand, every turn, forever. The math is small and merciless. A single point does nothing to a board of large bodies, but it is lethal patience against the cards that hate being pinged: X/1 utility creatures, toughness-1 hatebears, mana dorks, and planeswalkers chipped down one loyalty at a time. As a colorless removal-and-reach tool, it slots into any shell regardless of color, the kind of artifact-dense, tap-ability-rich design lineage where equipment first started doing this kind of work. The friction is deliberate. The equip cost is steep relative to a single point of damage, and the activation eats the creature's tap, so the body can ping or attack but not both in a turn (vigilance breaks that tension neatly, freeing an attacker to fire after combat). Pair it with an untapper and the slow drip becomes a genuine engine, grinding an opponent's small creatures off the board one at a time while threatening their life total in the late game. It does not end games quickly; it refuses to stop, which is a different and underrated kind of pressure.