There seems to be a lot of love for Ythotha. Dont get me wrong, I like it as well, I just think the "killing everything in the area it dies" feature is too stong in the 4v4 ladder.
And I dont agree that it's easy to kill with just some micro. usually it doesnt attack alone, it has also an army and t3 mobile shields with it. it has also a pretty good range which gives it a micro and safety advantage as well.
I don't say it's broken, but maybe needs a nerf regarding to the 4v4 ladder games.