For shaman:
Iksar is out because you already have the necro and they can't use Jaundiced Bone Bracer.
Barbarians are boring.
Troll is the obvious choice. They get regen and can use
http://wiki.project1999.com/Regent_Symbol_of_Innoruuk
One of the few things shaman can't do is snare, this gives you that ability.