Vectis Silencers

A blue body that pays black mana to bite is the whole point here: this is a Human Rogue built to live in the seams of a two-color shard, where the cost to activate an ability deliberately falls outside the creature's own color. The 1/2 frame is unthreatening on its own, but a creature that can grant itself deathtouch on demand turns any block or any chump into a trade up the curve, and at instant speed the threat alone reshapes combat math: an attacker thinks twice about running into a 1/2 that can suddenly kill whatever it touches. The design works as a guard you keep open rather than a spell you spend. The constraint that keeps it honest is the off-color activation, a hallmark of the wedge and shard era when cards were intentionally wired to reward a specific two-color overlap rather than a single hue. Pay the black, and the Silencers patrol the ground indefinitely; in a deck without access to that mana, the ability is dead text and you are left with a fragile flier-less body. That dependency is the trade the card asks for, and it is the reason the rate looks cheaper than it plays.