Mercs need more item slots and a "merc cannot die" item like in diablo3. Especially as a summoning necromancer with the merc being so vital to being successful its just an annoyance to be like well he died because i cant equip him with enough dmg reduction to survive. just tedious running back to town to res every time you run into something that just destroys him
give him a full rejuv or 2?