Just got 60 on my Necro

[Worry]

and I liked it so much I'm doing it again. I feel I have a much better grasp of how they play and would like to tackle some of the tougher zones with a more experienced mindset.

My current one is an Iksar and I wanted everyone's opinion on what would be the most interesting second choice since I don't want two of the same race/class combos.

Thanks!