Monument to Perfection

A land-fetch rock that quietly threatens to end the game if you build your manabase like a puzzle box. The tutor half is deliberately narrow: it pulls only basics, Spheres, or Loci, the land types a five-color or heavily-fixed deck is already assembling. That narrowness is the setup for the payoff, because the second mode reads your board rather than your hand. Nine differently-named lands among those three categories flips the artifact into a 9/9 indestructible Phyrexian Construct with toxic 9, a body that either kills through poison in a couple of swings or shrugs off nearly every removal spell aimed at it. The condition is doing all the balancing work: nine uniquely named lands is a demanding count, since fixing built on repeated copies of the same dual gets you nowhere toward it, so the transformation rewards the specific deckbuilding contortion of assembling nine differently-named basics, Spheres, and Loci. What makes the design cohere is that the same lands enabling the toxic clock are the ones the tutor is built to assemble, so the two abilities feed one another across turns: fix early, count late, swing lethal. It sits among artifacts that pose as utility pieces and reveal themselves as finishers once the board matures, but it ties that reveal to a land-diversity metric rather than a mana threshold, a narrower and stranger axis than most such cards ask for.