Encroaching Mycosynth

A type-changing artifact that rewrites the rules layer rather than the board. The premise: your nonland permanents become artifacts in addition to their other types, and so do your permanent spells on the stack and your nonland permanent cards you own that aren't yet in play. That last extension is the load-bearing one. Effects that turn permanents into artifacts on the battlefield already existed; reaching back to permanent spells and permanent cards you own means an artifact-cost reducer sees the discount before the creature ever touches play, and a tutor that fetches artifacts can grab a nonland permanent that has no printed artifact type of its own. The scope has a clean edge worth respecting: it touches only permanents. Instants and sorceries stay what they are, and lands are untouched entirely, so this is not a blanket "everything you own is an artifact" switch. It also does nothing to opponents. This is a pure enabler, inert unless a deck is built to spend the type it hands out, and its whole value lives in that one-sided reading. What it collapses is the distance between "artifact synergy" and the nonland permanents you were already going to cast, which is a wider surface than the four-mana rate suggests, precisely because the type change follows those cards through the stack and out of the hand rather than waiting for them to resolve.