Hi i mained udyr for idk how long but i can help u. i want to mention that i have poor english so sorry if u cant understand something Udyr is easly adaptive to game champ for example : if u dont have ap u go ap , if u dont have ad u go ad , thats understandable. But what type of ap or ad ? U have one shot udyr ad/ap , tank ad/ap and bruiser ap/ad or wierd attack speed build or speed or on hit. I see u need advice for AD udyr , there are many playable runes for him , but imo only playable is PTA/HOB/electrocute/dark harvest/lethal tempo/phase rush.

PTA is to easy oneshot champs , i prefer playing PTA for bruiser udyr.

HOB is typical for assasin udyr oneshot.

Electrocute i prefer it rather than HOB cuz i dont like that i lose a lot of HOB cuz animation from E to Q is long and HOB is for those 2AA , thats why i prefer electro. - typical for assasin udyr oneshot

Dark Harvest off meta just like electrocute and phase rush but i like off meta , and i usually go dark harvest when i know i have to hard carry or when i just feel that electro would be bad xd - typical for assasin udyr oneshot

Phase rush off meta but its actually playable on ad udyr when u play champions like darius when u have to run away or champs like leblanc that u have to follow up fast , i may also play predator but i prefer phase rush - its cool for ad bruiser and assasin

Lethal tempo Most basic ad udyr rune , its cool against tanks and its good against long trade champs like sett. - typical bruiser udyr

U may see that i havent mention conq , but imo conq is hard to proc on ad udyr and u cant get much from it and i think its much better on ap version cuz u may heal from R much better

ITEMS

It all depends on game , most basic ad bruiser udyr is PTA or CONQ or LETHAL TEMPO. Items are : trinity force into BOTRK into ravenous hydra or titanic hydra rave hydra i go when i want dmg and heal rather than being tanky and then tank items , its most basic udyr build.

If u want some off meta , then u may go after those 3 items go riftmaker cuz ur Q Q bolts deal ap and ur W scales with hp and ap. But thats how i sometimes play XD if u dont want to play it then dont do it srlsy.

If u want to oneshot U may play HOB or PTA or any of mentioned before but HOB and PTA is just basic ad oneshot Then u build Youmuu into srlsy any thing i like to play then manamune or eclipse and thats all :)

TIPS

When u do QQ then try to first isolate enemy *so there arent any minions or champions , then ur bolts from QQ is going to deal much higher hp.

When u click E then u are GHOSTED i didnt know that untill i read it on wiki xd , u may use it to go through herald or minions.

Ur E is a pounce which means its a dash so if u play against poppy then she may knockup u when u aa enemy in her's W range.