I just tested elementals so this is what I think about the new update. Fire nerf was reasonable, cycloid protect spell nerf was also reasonable. Cycloid health nerf wasn't necessary, like rain said it won't really do anything.
Tower spawn 2 for elementals will never be very useful unless it is drastically changed so the big charrog will behave like a giant, (tanking air units, etc.). It's damage is pathetic, no stun. Chaos giant is AOE stun, and order giant is ranged with stun. This tower spawn is fast, that's all.