Afterglow effect - option to disable or to move it to the weapon only?

[Songen]

This, the rare tag is exclusive to the weapon regardless the level, the minute you get to where it becomes the named weapon you can not continue or collect it unless you drop your current.

actually, trial of magian dumps that concept as long as your not doing the current trial at that time, same weapon, different trial.

however you are right, the "Rare" status prevents weapons of the same name being attained twice, a +1 or +2 must be added to the name in order to change it to something else