Spy Kit
The +1/+1 is the decoy; the real text hands the equipped creature every nonlegendary creature name in the game at once. That phrasing puts this among the rare cards that interact with name-matching effects from the equipping side rather than the targeted side. A creature wearing it answers any "choose a creature name" or "name a card" demand, satisfies tutor and reveal effects keyed to specific creatures, and pulls double duty against cards that punish or reward sharing a name. It also folds into anything counting how many creatures of a given name you control, since the bearer technically qualifies as all of them. The design lives in a corner of the rules most cards never visit: names normally carry no mechanical weight, so an Equipment that weaponizes the name itself does nothing until the rest of your deck is asking naming questions. That narrowness is the whole point. It is a toolbox piece for a deck that treats creature names as a resource, a build-around inert on an empty board that quietly picks open a specific lock once its supporting cards arrive. The two-mana cost and the modest stat bump keep it a curiosity rather than a staple; you run it because your deck posed a question only a card like this can answer.

