Too Many Enemies

I moved my monk over from Prophecies and have been beating the game with heroes/henches. I've beaten a few missions, and am currently doing a quest where there is an ungodly amount of Corsairs wandering around (seems like over 100 in a small area) From what I've seen in Nightfall, most of the battles have 20+ people fighting, which makes it impossible for me to keep track of what's going on. Individual healing seems pointless, everyone is getting hurt simultaneously, and I end up just spamming Heal Party until the battle is over.

There isn't any depth to combat beyond "kill the monk first", and it angers me. Prophecies didn't have this problem, because the mobs were smaller and you could keep track of who was doing what.

Anyone noticed this? Feel the same way?

Need to bring skills like blood well etc thats what im using and it works a treat.