rune

[worn tendon]

leave as is until you have someone who wants to use it

maybe you want the acc regardless and you still gem out cd

maybe you're using on someone who's using slot 4 cr and you don't need cr on this rune and can gem in atk%

there is never a reason to gem a rune before you use it

at worst even if there was only 1 "correct" way to gem something (which is not true 99% of the time), maybe you won't actually end up using this rune and the gem would be better used on something else