User blog comment:GreenMoriyama/Izo, the Blizzard Prince/@comment-3391671-20160327131014

Patch V1.00 is out with Izo's fresh revision. He had some clutter, which is one my issue with kits. Even then, there are changes to his kit, whether if it's a small number tweak or a change in mechanics.
 * Setting aside any added trivia and such, Izo's passive (Frozen Edge) now has base magic damage while some of the ability's scaling aspects have been rescaled and slightly nerfed (mostly due to the addition of the base magic damage). The special interaction with non-champions has been removed to simplify the ability.
 * Crushing Bolverk is now not filled with sustain, simply becoming a Yasuo-esque attack that is wider and a shorter, with some healing. I also made Bolverk an entity of his own than simply a name that justifies why Izo uses a wolf-head for this ability.
 * Frost Fang has been changed around, retaining only his barrier. Instead of the dash and reflection, Izo receives bonus movement speed as long as the barrier persists and inflicts magic damage overtime to any enemy who attacks him (non-stackable, but refreshable).
 * Glacial Blade has been improved in certain places, such as its range and travel speed, but has also seen some nerfs, such as its knock-up duration and the AoE.
 * Field of Rime has received some clean-up, to the point that I even noted it in the patch notes. Otherwise, it features minor changes to its work.

All of these are still WIP and are somewhat experimental in idea, so if you have any thoughts, asks or recommend.

As for your questions, Primus, I will go answer them when I get the time.