User blog comment:Salubri/Final Fight: Reflections of an Unrealistic and Ridiculous Battle/@comment-44061-20100216041513

Thats hard to say for a couple of reasons. One we have no idea how versatile Tosen's zanpakuto is to how it would work in the way you suggest. Tosen never had to worry about Aizen's zanpakuto cause he couldn't see it. As for his own we have only seen its use technically twice (vs. Vizards 100 yrs ago and against kenpachi). In both cases they lost sight and hearing. Now in the event of going against Aizen it wouldn't work. technically in order for you to not be affected by Aizen's zanpakuto all you have to do is make sure you dont see it. Tosen's would make you blind within the area is has influence but it wouldnt help you in the sense that Aizen doesn't need his zanpakuto to kill you and you cant fight without your sense (unless your kenpachi). So yes it could make it so Aizen can't affect you but it would largely be pointless cause we have so far seen it used against somone not to aid them and more then likely it can't do that but we will never know. Either way your a sitting duck for further attack. Not to mention that Battling amongst shinigami are battles of reiatsu. Aizen's reiastu my cancel out the affect it has all together, making it useless.

As for your second point, its possible thats what ichigo's new form is, my only concern is that simply overpowering with force Aizen doesn't seem to be an option even if you havent seen his zanpakuto. Ichigo uses only force in whatever form he is in, there really is nothing technical about his fighting, so im not sure how this will play out. Though I see your point Aizen is arrogant, as he does think of himself as a god. Aizen basically stated the concept of the battle it will be fought using reiatsu. Ichigo may just possess the amount to take him. Though his showing with his power level fluctuates, its never steady and he doesn't know how to use it properly.