Silverskin Armor

The +1/+1 is incidental; the type-changing rider is the function. Turning the wearer into an artifact in addition to its other types works as both shield and enabler. On defense, it sidesteps any effect that names nonartifact creatures: the era this card emerged from leaned heavily on "destroy target nonartifact creature" and "nonartifact creatures get -1/-1," and a one-time equip cost buys durable immunity to that whole class of removal. On offense, it turns the wearer into an artifact creature on demand, which matters wherever a deck counts metalcraft, leans on artifact-creature tribal payoffs, or wants sacrifice fodder that reads as an artifact. That dual identity is unusual for Equipment, which mostly trades in raw stats; here the stat line is the throwaway and the typeline rewrite carries the card. The price is honest about what it grants: rewriting a type line is cheap because it accomplishes nothing on a board where no effect cares about artifact status or artifact synergies, so the burden falls on the deck to supply the context that makes the rider live. This is a design built around a specific metagame texture rather than a universal one, which is why it reads as filler in isolation and as a precise answer the moment the right hate or the right payoff is on the table.