The twins (Jasdebi and Debitto if i remember correctly), the Noah's that represent bonds, have the ability to "Materialise". Essentially giving them the ability to make anything (Even completely impossible stuff) in the known omniverse. Neah, as you said, possibly has the ability to "Harmonize" (That's what i'm calling it anyway) with anything and everything. I don't know just what such ability would entail though. If he can synchronize his opponent, does that mean he could effectively turn himself into a Voodoo doll? IE, whatever damage goes to him goes towards the person that the Voodoo doll represents. (Self sacrifice to kill the Earl anyone?) If he can synchronise with someone else, it might be possible for him to do *Steal* someone elses arm. Tykki is extremely similar to Neah, maybe he'd steal his arm? He'd gain Tease as a weapon as well, which would be a mighty big help against the other Noah. Not to mention his ability to "Choose" what he touches. However, if his power is something, say, more vibration based, then (This is going with superhero logic though) could he possibly vibrate his own atoms so fast that he could phase through solid matter?