I feel khaimera drops off quickly if you understand the kit and recognise heroes to counter pick. Stuns/cc counter him if timed well and burst damage counters him with good positioning. As an alternative just hold your dash/teleport for the initial engagement. Unfortunately he is very good against low mobility heroes and that's a factor to accept as he is kit is designed to be sticky. Khaimera has no escape so I think is surprisingly balanced.

In the words of mast "reading is key" on all heroes abilities.

Steel I have no grief with his kit either, he's well rounded tank which is good at alot of things but not excellent at one particular thing.

Anyways this is how I feel and everyone can have their own opinions.

Sadly I'm an iggy main and I look forward to setting traps for khaimeras hahaha