[quote=BB]
Conceptual weapons like Fragarch and Gae Bolg are soul crushing weapons, but they only do what they're designed to do, so they have limitations and counters. For example, after this point you should know not to use a trump card against Gilgamesh, thus Fragarch will no longer be a problem.For example, using Fragarch on Gae Bolg would result in a double KO.
[/quote]

However, the main issue is whether or not Stein's trick with the two hearts would have worked, seeing as how they're both his heart. I'd assume it'd go for the closest one.