The Enigma Jewel // Locus of Enlightenment

A rock with an unusually specific appetite: it produces colorless mana that can only feed activated abilities, which is less a limitation than a mission statement. The transformation cost asks for four nonland permanents or graveyard cards whose only common thread is that they each have an activated ability, and that is the entire pitch. You are meant to accumulate cards with tap-abilities, pump effects, and toolbox activations, then exile them all into the flip and get them back welded into a single object. The back half inherits every one of those exiled activated abilities and, crucially, copies each nonmana one you fire, choosing new targets for the copy. That copy clause is where the engine curdles into a combo: any ability whose cost can be recouped, or whose output feeds itself, doubles every time you point it. The "once each turn" cap on the inherited abilities is the only brake on something that would otherwise spiral out of control on its own. The strategic axis it rewards is consolidation rather than sacrifice: four cards' worth of buttons collapsed onto one permanent that then hits each button twice. It is a payoff built for a board already cluttered with small activated pieces, turning that clutter into a single overwhelming turn.