Deathknight
This adds the Deathknight class, a melee hybrid class. They use entirely new and unique trees, with cold and darkness melee attacks and spells, temporary minions, debilitating auras and can specialize in either shield or two handed combat.
Unlike Necromancer, Souls are instead used for the Soulforge ability – a sustain that causes every ability to consume souls to empower itself.
Full details can be found at http://forums.te4.org/viewtopic.php?f=50&t=44924