I 2-box, playing Swordmaster and Rune Priest. Tier 2 Mourkain Temple is definitely fun.

Running a tank with Guard on my Rune Priest, I can stay close in the front lines.
I'm using the Rune Priest more offensively. Bubble + Rune of Might + Moral2 AoE dmg + healing works well with the Swordmaster's aoe melee abilities.