This one here's another bad idea.

Well, it KINDA works. You can stun the entire enemy team for 1 second, but it is staggered.

So the idea is that you can stun enemies in bear form, mitigate incoming pokes with tartl form, use tiger form to clear towers and other objectives, and phoenix form to push.

Yeahhhhhhh. Not exactly the safest lane-partner. I started Bear, then got Tiger (by accident), then Turtle, then Phoenix. Maxed Turtle, then Bear. I suppose if we got far enough, I'd max Phoenix if we were facing a lot of teamfights or Tiger if we were taking objectives. It was a bot game, so I took Phoenix. Because I had another phoenix in lane ( Quinn).

My build would have been Shurelya's Battlesong, Aegis of the Legion, Frozen Mallet, Morellonomicon (he actually scales with AP...who knew?), boots, and wards (in a PvP match) or Warmog's Armor (in a bot game).

Some questions came up:
Does Ravenous Hydra proc on-hit effects?
Can Udyr build and use Manamune effectively?
How effective are Mobility Boots vs Boots of Swiftness in-lane?