I am running 1 Paladin- 2 Warlocks lvl 42. Currently can clear SM with voidwalkers tanking and paladin as healer. Blessing of salvation on warlocks and 2/3 imp voidwalker. I rarely have issues with aggro. Ive been able to clear sm armory since lvl 39 and cath since 40. Some of the myrimidon double packs can be quite a challenge with enrage. If I could expand my team I would add a mage and priest. Mage for ports/water, priest as healer and set paladin as tank. Don't underestimate blessing of salvation.