it should have some sort of effective like gains uber on hit but only if you hit them in the back unkowingly stealing there "adam" hehe. or maybe make it so insteand of a mellee weapon it works as a syringe that sucks blood(Adam) out so you continuously hold the m1 buton and as long as your connecting with an enemy it drains theyre health an returns it to you in uber. its based on the little sisters harvesting adam it should be based around doing less damage but draining enemies for there adam, and perhaps since this would make it be less useful as a weapon it could have a +25 health attribute or maybe increase damage resistance but only when its out not as a passive resistance.

no this would not become an ubersaw skin its absolutely based off bioshock theres many unique ways you could do the stats for this one