As of right now you are not allowed to use a second account to jump straight back into a fight or to gain an unfair advantage. We've seen some repeated abuse of this recently and shaming these people obviously does not work so now we're basically forced to apply a rule against it. If you do it now you are risking a temp- or permban depending on severity. Just to make things clear; you are allowed to use a second account but you are not allowed to use it to login & rejoin a fight where you just died. Wait at least 40 minutes before you jump into your second account and you will be fine.