Swamp Marauder

Tactics
This can be your main tank / meat shield. Impressive health pool thanks to Monster Heart, a lot of self healing (damage recovery), Flesh eater from level 12 - this guy can survive a long fight.

Vein sense causes bleeding which offers a lot of synergy with Blood Sucker allies. Natural resistance allows him to ignore poison.

The only downside is lack of armor.

Invest in Vitality and this guy will become a backbone of your party.