5 Chars Dungeon Powerleveling Multibox

[Apatheist]

Does that actually work or does it run out of mana before killing things?
[Holy Nova]

It doesn't. Holy nova is incredibly weak in PvE. I see it used is in PvP occasionally, you can use rank 1 to get rogues out of stealth.

If your doing dungeon runs, purley for leveling so nothing high level... Do you NEED a tank or can you overwealm the mobs and bosses with DPS?

All low-mid level dungeons can be tanked by anybody with decent mitigation who can hold agro. No need to spec protection outside of raids. It's more about your gear than your talents. If you look at the warrior protection tree for example, there's nothing past the third tier of talents that increases your survivability. In dungeons it's more important to make sure you're maximizing your threat output so you can clear faster.

[Uhnknown]

I don't know that i'd call Holy Nova incredibly weak, you can use it on a single Priest to farm non-elites in DM - But aye, you definitely won't be spamming it to kill elites in a dungeon, or atleast any that are within a few levels of you.

[Apatheist]

I don't know that i'd call Holy Nova incredibly weak, you can use it on a single Priest to farm non-elites in DM - But aye, you definitely won't be spamming it to kill elites in a dungeon, or atleast any that are within a few levels of you.

There are some niche uses for it but it's still incredibly weak. I don't know why anybody would want to farm with a priest. You could level a mage and farm with that and it'd be far superior even with no gear.

As a boxer it makes even less sense. Not even worth the talent point IMO.