Thran Forge

A repeatable type-changer hiding on a colorless artifact from this era, and the design is doing something stranger than the small power bump suggests: it manufactures the artifact type on demand. The +1/+0 is incidental, a baseline reason to justify pressing the button at all. The real product is the second half of the sentence, the part that turns a flesh-and-blood attacker into an artifact creature until end of turn. That conversion is a key cut for locks the rest of the set never quite built. Anything that punishes, protects, or rewards artifacts (artifact-matters payoffs you want to feed, abilities that care whether a creature is an artifact, removal worded to hit only non-artifacts the way Terror does) suddenly has a switch you control, for two mana a pop. It exists to change what another card is rather than what it does, which is a rarer lever than raw stat-pumping or removal. The cost of that flexibility is plain: you are spending mana to grant a type that helps only when something else on the board already cares, and absent that context the activation is two mana for a single point of power. Granting the artifact type cuts both ways too, since it can just as easily hand a Shatter or a Disenchant a fresh target. That double edge is what fixes it as a toolbox piece rather than a maindeck staple: the type-granting is the point, and the point only matters once you have built the rest of the board to exploit it.