User blog comment:GreenMoriyama/Izo, the Blizzard Prince/@comment-3391671-20160328235017/@comment-3391671-20160330220204

Please, go ahead. I would like to see your iteration of Izo. I'm sure I will get a good kick out of what you'll do to make him an excellent champion. (>w<)
 * I've had different opinions on the strength of the passive's slow, so I am not exactly as willing to buff it. As for itemization, you make valid points. I keep misplacing myself for stats, forgetting to recognize what items do what. Anyways, I'll see to it in its own way. As for "nerf first, then buff," I take that advice too.
 * AD Izo would be an AA-focused bruiser, making use of his raw basic attacks and Q... decent. AP Izo is similar to a mage as he focuses on the periodic passive and his W and E instead... lovely. I believe I kept the Q hinged on being AD since before some of the changes, W also had AD scalings. A thought process could be in the same line as to why Yasuo's E is AP focused than AD, but that's just an excuse than reasoning. I'll see what I can do to play with the ability...
 * Most if not all of Izo's slows are decaying... never saw this coming >.> Anyways, you make a valid point in regards to how the functionality of the slow should work. It is likely I will implement the decay factor and a short duration.
 * I play against BOTS!! ...jokes aside, I do not play the game often, so I may be on the somewhat lucky side when playing normals to face someone who doesn't know how to deal with Dark Matter. Otherwise, I can continue to increase that travel speed to make the blade more reliable. If not, mana cost can be some what reduced to feel less punishing. I don't know; I do want to allow Glacial Blade to poke somewhat reliably, as that was half of the original intention behind the making of this ability.
 * 10% slow for field, and you ask to change Hoarfrost into an something else than an enhanced version of Frozen Edge? Alright. I presume this is what you meant by "centralize the ability more on the Field than on Hoarfrost"?