Udyr seems to have what I call "Pre Rework Sion Sindrome".
Before Sion's rework, nearly anything was viabel on him and he was constantly unhealthy.
Udyr seems to break many items, while also needed constant balancing.
On Udyr, nearly anything is viable. Almost any item (The gold supp items are an outlier) are viable on him. He can go tank, AP, attack speed, AD, DPS, Bust, and some players use different forms much more then others. Old Sion was similar as you could really build almost anything on him.
Note: This post is not saying Udyr needs a rework, is OP/UP, or anything of the sort. It is just a look at something that may need to be looked at in the future.
