mines - use shield, or aviod, or use penitence and interupt
beast - why are you getting spirits? ooze really isnt bad at all, you are right about health though, it can be a big problem. that's why getting a head is key. later lvl rooks can be a pain, the best way to deal with them is ton get killed, not let them kill you, or plan to take em out when you have 2v1
erubus - at a high lvl is a pain because of nightwalkers - but at lvl 7 you get an amazing mve and need to start crushing first thing
penitence alone is plenty to get tons of kills, get swift ankelts, hit them before range, surge of faith, can then wail on them with increase attack damage and speed, they try and run, penitence is back, then you can continue to wail cause they are slow
the penitence alone does 1200 in that 8 second span, and another magical key when people decide to run away, at lvl 7 you should have a bit over 3000 health, people tend to wait til 1000ish left before they run, but for them its too late. if penitence is not up, well chase them, chase em to towers, you can pop shield