Urtet, Remnant of Memnarch

Myr have spent most of their existence as scenery: mana dorks, sculptors, and the occasional battlesphere seeded through artifact sets, almost never given a reason to fill a deck rather than accent one. The reward on offer here is a five-color activation that stacks three +1/+1 counters onto every Myr you control at once, the kind of board-wide jump that converts a heap of 1/1 tokens into a lethal army in a single turn. What lets that button do more than pump is the untap at the beginning of combat, which fires before attackers are declared: it refreshes your mana Myr so the pool is full when you want to activate, and it lets any Myr with a tap ability act a second time in the same turn. The token generator on the front feeds that engine, so every Myr spell you cast widens the pool the pump will later multiply. The cost that keeps the ceiling honest is the WUBRG requirement: the board-scaling ability sits behind a full five-color investment, so a colorless artifact tribe has to solve rainbow fixing before it can pull the trigger. The card lives on that contradiction. It is a tribal lord whose blowout potential is enormous, but whose keystone ability demands a manabase most artifact strategies would never otherwise assemble.