An uncommon (sarcasm) conundrum

[Aerar]

I have just started on this server and have 2 characters of whom I like equally.

My issues is lvl 50+ usefullness (as that is my plan)

My 2 classes are Necro (gnome) lvl 12 and Warrior (halfling) lvl 6

Now I know tanks are always needed but I also wanted to see if there was a positive argument to be made for the necro as I have such fun playing it.

I dont want to simply be a mana battery.

Thanks!