Cleric can revive non-party members in pvp

In PvP (more specifically colosseum) clerics can use resurrect on tombstones of players that you killed, therefore teleporting them, this can make it look like they are hacking if they are already in a fight with someone, you can also use this to force people in to the global PvP zone.

Someone disappearing and then appearing in a giant beam of light looks like a hacker?

No, but the game might pick it up as teleporting…

Maybe if your laggy enough the beam wouldn’t appear on your screen…

the thing about pvp is that even with you are somewhere that its enabled every player is still recognized as “friendly” so not only will resurrect work but so will flares heal or other friendly player enabled moves which honestly imo is very annoying