Viridian Corrupter

Naturalize is the baseline green answer to artifacts: an instant for two mana, gone the moment it does its job. This trades that efficiency for permanence and a clock. Bolting it onto a body means the destruction sticks around as a 2/2 that keeps applying pressure, and the pressure here is the worst kind to be on the receiving end of. Infect turns those two points into a poison clock, which converts an artifact answer into a card that contributes to the poison-deck game plan rather than sitting in the deck as dead disruption against artifact-light opponents. That dual identity is the design tension: an aggressive infect creature that also moonlights as targeted artifact removal, so the slot earns its keep whether you draw it against an artifact deck or a creature deck. The Phyrexian framing matters to the mechanic, too: this is a green creature destroying artifacts, which in the broader compleation arc reads as the green wedge of an infect strategy pushing back against the metal it shares a battlefield with. As a piece of an aggressive poison shell, it is built for the games where you want every creature to do double duty, threatening lethal counters while clearing the blockers or mana rocks that would slow the assault.