So today I went to faction black, usually i don't play there i just bought some gear from voteshop and made some pots and went to pvp. Then someone asked me to pvp (id remember his name), i said ok because why not ? then he said brb and came back invis. I really didn't care at the start since i really only pvp on anni or kitpvp where u can't pvp invis so there wasn't any advantage to him of doing that, right ? Then i started noticing something: he was hacking. First i though it was lag because he was hitting me when i was behind him, but i was sure i had no delay : my hits register normally my pots work normally and my epearl work as soon as i click so i had no lag at all, still he was hitting me from all angles, hitting me while he is running from me, when he is potting, and when he is gappling. He They were using invisibility potions so I couldn't see his name (only the enchanted diamond armour which really could be anyone). By how i get set on fire when the person hits me with an axe I could tell that he was using a pvp axe which led me to believe that he wasn't your average Kit PvP or anni hacker nub and that he had been playing for a longer period of time. So the only reason a hacker that had been playing for a longer period of time got away is because of invisibility potions. And that's why many servers disable invis potions or remove the invis when u get combat tagged. This problem isn't only in faction it's in survival too idk if it's the same in semi and prison thou. So yea Invis pots should be disabled in the pvp servers coz hacker can justdrink an invis pots and hack as much as he won't without getting recorded or known when admins aren't online.