A player shouldn't be able to immediately start fighting after reappearing from being a ghost. There should be a short cool down before they are able to enter combat mode. Too often, player will die and just stay close to the enemy as a ghost. Then they can get a couple free hits in once they reappear.

I'm fairly certain that this wasn't intended when the ghost system was implemented, as its main purpose was to reduce corpse camping, but players shouldn't be able to use the ghost mechanism as a quasi "cloak/stealth" mechanic to get the first hit.