As udyr, onnly thing you need to buy is damage.
With your q you can have 1.6 attack speed wihtout buying single item + do like 300dmg every 2-3 aa
With your w you cant die even in 2v1
With your e you get 500 movespeed + stun
Soo he is champion who has escape/dmg/attackspeed/healing/shieldning/tankiness/increadibly good chase, just in his kit.
Isn't that a bit too much? He can even escape jax with his e, and that is something i alomst never see any champ being able to do without certain build.
More less stronger variant of tahm kench.