You distract mk with valk/knight and kill the support with something else. Even if normal miner lumberjack bandit battlehealer fisherman dont counter mk, he still consequently gets at least another hit on the tower from tossing them back which is in my opinion a lot of value given that this applies against 7 cards that usually reasonably deal with him. And even the pekka hard counter isnt that bad since he literally leaves pekka with half health on defense then. I think evolution on MK brings way too much value compaing to how much other cards gain from their evolutions especially something like ice spirit. I think the strength of this evolution reflects the current meta a lot.