[Sackett]

Originally Posted by SilverTalon

Hmm not really, attacks with vectors (including magic) can work. He doesn't just reflect (or redirect) everything with a vector. If there was a "setting" for that, he couldn't breathe or see (or even hold a glass or something, you saw what happened just by placing his foot on someone's chest with reflection on). So clearly he has his reflection set up specifically for everything, therefore if you could hit him with something he didn't know existed or what it was, it wouldn't get auto reflected even if it had a vector. So there is a clearly exploitable weakness... in theory, though where Mikoto could get something even if she knew about it is another story.

Actually he does have a setting for "reflect everything" (which does have the draw back you describe) he even has a setting for "reflect everything except for specific exceptions" and that is his usual default setting before being injured.

It's not that Accelerator is unbeatable, just that for most people beating him requires a non-reflectable attack with surprise and speed sufficient to defeat Accelerator before he figures out how to counter it. An attack that confuses Accelerator (such as magic) is a plus.

Spoiler for Spoilers for future events in LN:

Fiamma is the only one I can think of besides Touma who might be able to bypass Accelerator's defenses entirely without a way for Accelerator to counter. Even that depends on whether his two "I Win" attacks have vectors.

My guess is that "The strike that reaches everything when swung" probably does have some complicated vectors, and that Accelerator could probably counter it after seeing it in action once or twice. "The strike that ends everything it touches" probably doesn't have any direct vectors, but it's possible that after it touches you the destruction it causes might have vectors. In which case Accelerator might be able to prevent his full destruction. Otherwise it's a one hit kill against Accelerator.

Of course I guess there was that nonsense about faking out Accelerator's reflection so that he beats up himself. (Why didn't Accelerator just turn his reflection off? That whole thing made no sense - but it just goes to show how desperate the author was to figure out some way to hurt Accelerator).