Do someone know how to upgrade weapon/subweapon etc, to +15 with losing only few potentials? There’s some tips or tricks to do it ? just saw a lot of ppl from some guilds in silute that got +15~+20 losing like 1~3 potential
Those were probably abusing an exploit. I advise you to not try. Accounts are under investigation and bans will come eventually for those who benefit from this exploit.