User blog comment:GreenMoriyama/Izo, the Blizzard Prince/@comment-25235491-20160327183413

Just two cents on the abilities, and I'm only gonna be listing things I find wrong. Those might be small nitpicks, those might be big:
 * P: 40% slow for seconds? I agree that getting an autoattack in late-game is hard, but damnit that slow's strong. Complete with 13% missing health. Also, a lot of things scale up, making it likely to be useless early and too strong later. I think it's too strong.
 * Q: I can't fathom how a heal can come from a skill named Crushing Bolverk. Also, I just can't like double-scalings.
 * W: Nitpick, but if it's called a shield even in your link, I advise against calling that a barrier. Also, punishing an enemy for attacking you should not be put on an assassin's kit imo. (Yes, in theory he's a fighter-assassin, but the only guys who should punish you for hitting you are tanks imo).
 * E: Pretty much nothing to say, it's a pretty interesting skill, though it looks a bit huge in terms of AoE. 's has a radius of 175.
 * R: Damnit, I already had a 800-radius slow field ult in the works! You got me there. Also don't say "parameter" to mean "perimeter", on top of that, it's just "dash range" that you should write down. The Hoarfrost thing is a bit hard to use: the fact that you gain a passive stack from Q while getting close enough would require an autoattack which blows the mark is actually conflicting...