I play a Monk/Mes, and I use 3 heros and only ONE henchmen (to reduce degen of energy while bonding AND to reduce the number of -3 energy hits of prot bond). The build I am using is basically a Protective Bond/Barrier build with Mantra of Inscriptions, Leech Signet (Perfect for Fire Imps), and Blessed Signet running all the time (due to the -3 energy per hit of Protective Bond). My heros are Acolyte Souska, Dunkaro set for hex/condition removal and Koss.
The build plays slowly, but it works fine for all mobs except the tengu, and this is due to the energy being taken to zero as soon as I engage them. They seem to constantly hit for more than 5% so I get a screen full of -3 energy and cant regen fast enough to keep the bonds up. Obviously, when the bonds are down we all die horribly.

I went as an air ele and I took MoW as SS, Olias as MM, Norgu as dom mes, and Alesia. What worked well was that MoW, Norgu and I had Prot Spirit and Olias had Aegis, so I could pre-prot where necessary. The only real problem I had was when I over-aggroed some of the skales - their Spiteful Spirit/Price of Failure can be devastating, especially for heroes/hench. I wasn't ashamed to retreat and regroup when that happened.