After Modasien's defeat, I came to the idea that their superweapons shouldn't be so easy to destroy. Snatching then opens a lot of interesting RP opportunities, too, and they deserve a chance to get it back (instead of just delete/delete).

So, how about two things:
1. Cooldown that activates after AP's death. While it's active, weapon cannot be destroyed. Long enough for AP to grab a basic gear and give it a try;
2. A special place where their weapon may be destroyed. Dropped into the volcano, sacrificed on some holy altar, etc. So AP would know where to intercept an enemy who carry his weapon;
3. Other characters cannot quit with the weapon. If they do, it returns to the AP, or goes to the temple's pit in AP's hometown.

Yes yes, I know, coding.