I would really like to see zees turn into a more bruiser/support item than a straight support item, and this is a step in that direction. If it were a viable option for a top or jungler, along the lines of how locket and aegis are both supportive, but still viable on bruisers. If Zekes base stats where more slot efficient I would also like that more, because right now it just doesn't give much, aura or not.
How about:
new recipe
+
+
+650 gold, total cost 2900 gold.
Stats: +400 hp +50% base hp regen +10% cdr. Unique aura (this really should have a name): nearby allies gain 15 AD and 10% lifesteal (1100 range). Gold efficiency if no nearby allies, 2655. Gold efficiency gained for each nearby ally: 1090.
Basically, this would be a supportive sustain item for a bruiser that is only worth buying once team fights start, since its stats (which are all great for solo laning) would be oppressive except for the relative inefficiency until near an ally.