Runed Crown
The Rune tutor built for the Aura cycle it feeds, which is the whole reason it exists: a piece of Equipment that fetches a Rune from anywhere one might be hiding (library, hand, or graveyard) and drops it directly onto itself, pre-attached, no separate cast required. That last detail is the load-bearing one. Runes are Auras that normally enchant a permanent, but stitching one onto a fresh Equipment before it has an equipped creature sidesteps the usual timing dance: the Rune's cantrip resolves as it enters, and its keyword buff rides along on the frame until you pay the equip cost and reassign the whole package to a body. The +1/+1 the object grants on its own is almost incidental; the tutor is the engine, converting a single card slot into whichever Rune the board actually wants (flying, trample, haste, or just the card off the top from the enters-attached cantrip). Because the search reaches three zones, it can rebuy a Rune an opponent bounced or destroyed, which rewards running several as a toolbox rather than one as a payoff. As Equipment goes, this is the unusual case of the object being a delivery mechanism for an Aura rather than a standalone buff: the attachment clause does structural work a plain Aura tutor could not, welding the fetched enchantment onto a movable chassis you can carry from creature to creature.
