Okay I am sorry but this is totally ridiculous. Healers should not be together. They heal everything for 200, making every monster in their range (which is also overly large) basically invincible until the healers themselves die. Plus they resurrect all their gremlin friends, so gremlins are literally invincible. Even if I am somehow lucky enough to take down one of the healers, guess what? The other one resurrects him right away. Oh my.
This goes for Solo, by the way, depth of 20+. I'm sure with good coordination two players could take them down, and most definitely 3 or 4.
I have wasted 30 minutes and over 200 CE to justify this: it is ridiculous solo.
Please disallow healers to heal each other, or make the healing rate a lot lower (both would be nice). At the very least, Healers should die for good when killed, not be resurrect-able.
Ahhhh, mech tunnels.
Tis be thy death.
Try triple healers next time. With 2 demo no less.