udyr rework in vpbe 7.8 let make it harder to understand 06.04.17
so his q and w got change so let make alll of his kit batter and harder to understand
let see you read all this ^^ 
base HP lowered to 550 from 593 HP growt lowerd to 80 from 99 base MR reduse to 25 from 32.1 base armor growt lowerd to 2 from 4
STANCE: Udyr has no ultimate ability, instead, any ability can be learned from the start and each has 5 ranks. Each ability also has a persistent effect ** for every 3rd basic attack on an enemy or the first attack **, which ends only when Udyr switches stances, though using an ability prevents him from using another for 2 seconds.
MONKEY'S AGILITY: Udyr gains 5 bonus movement speed and 10% bonus attack speed for 5 seconds every time he uses ability(not the same one twice) , stacking up to 3 times.-----------------> Udyr gains 1 + (50% armor - 60% magic resist x 0.025% of Hit Points) movement speed **and 2% of his total attack speed **as flat amount, for 2 seconds every time he uses an another ability, or hit a an enemy champion with a persistent effect . (duration increase by 0.5 seconds every time you basic attack.) (stacking up to 20 times.)
~~*note if you have 100 armor and 50 magic resist and 2000 hp this (50% armor - 60% magic resist x 0.025% of Hit Points) will give you 7 movement speed per stack ~~
Q -- reduse bonus attack speed from 30 / 40 / 50 / 60 / 70% to 15 / 25 / 35 / 45 / 55%
W -- shield duration reduse from 5 to 3 seconds (+0.2 seconds per every Monkey's Agility stack , up to +4 seconds, for a total of 7 seconds) shield strength changed from 60 / 95 / 130 / 165 / 200 (+ 50% AP) to 40 / 65 / 100 / 120 / 145 (+ 50% AP) (+ 5% total Hit Points)
E -- bonus movement speed duration changed to 2 seconds for 2 / 2.25 / 2.5 / 2.75 / 3 seconds bonus movement speed strength changed to 20% (+1.5% per every Monkey's Agility stack , up to 50%) from 15 / 20 / 25 / 30 / 35%
E -- persistent effect -- changed from Udyr's basic attacks stun his target for 1 second. This effect cannot occur on the same target more than once every 6 seconds, to Udyr's 1st and ever 3rd basic attack will deal 5 (+10% of bonus armor )(+10% of bonus magic resist) as bonus true damage (max: 300) and stun the target 0.5 seconds and steal 5% (+1% every Monkey's Agility stack) movement speed from the target for 2 seconds (the slow last only 1.5 second because of the 0.5 second stun)
R -- changed fot Udyr unleashes pulsing waves of fire around himself for 4 seconds, dealing magic damage each second to all nearby enemies for the duration, to -----> udyr empowers him self to deal 25% of all damage he did to his next basic attack (deal magic damage) and allows udyr to cast the ability again for the next 5 secons to deal 20/40/60/80/100 (+5% AP x Monkey's Agility stack, to a max of +100% AP damage) magic damage near him but he lose 2 Monkey's Agility stack per ever cast (can cast up to 5 times ever cast cost the same as the first cast )
R -- persistent effect -- now grants udyr +1 Monkey's Agility stack for every champion hit (up to 5 stack at 1 strike) AP ratio increase to 50% from 45%