My shammy soloed him with the help of her puppy and NO MERC. She was lvl 53, so he was YELLOW con to her. Drop the Cloak nothing special + Ruby
Gears that she has on was Bazaar gears (she was and still IS wearing Flawed Defiant items and NCP Vendors ears and rings)
I didn't have the luxery of getting her Buffed out with other people buffs, so I had to make do with her own shammy buffs + Potions (C potion, Hp and AC potion and have HOT potion in case I needed it)
Tactic was simple:
PULL with SLOW and pray to God it landed on first hit, *Resisted on first try Naturally*
3 Slow later it Hit! But about this time, my health was about 60%. I had to hit my puppy with Spirit of Puma for more dps on the proc while I tank it out and hitting mob with my Standard DOTs. SLOWLY but surely this mob drop. That's another notch to her belt, soloing YELLOW con mob NEXT up is RED CON Mob for better xp and faster death! I think I took out a Red con mob in early lvl but those don't count because they are too easy and have too little HP to matter. It's the lvl 50-70 Yellow and RED con that are more challenging!