Monkey's Agility

I was thinking on a new passive for udyr to make him make smarter decisions on when to use stances and get advantages by doing so in terms of how he hard he is countered by cc. I was thinking in making his passive keep track of how many times he activated any stance and after a certain number that the next stance he activates gets buffed and to make up for this buff the stances could be nerfed like bear slows instead of stun and less shield an life steal on turtle and less damage from phoenix. I was specially thinking this passive remake for the bear stance in that case what I was thinking is that he gets immunity to slow stun knock up and displacement for 2 ~ 2.5 seconds. The turtle can generate extra shield or get more life steal or give some defense for a short duration and the phoenix could increase the aoe damage of the persistent aura for that activation and tiger empower the next attack or give bonus attack speed or DoT.

What do you guys/gals think?