First, don't forget to check the notes on the runes, items, summoners spells etc. They go into much needed detail.

Overall your goal with AD Udyr is to gain the necessary lead to duel anyone in the game. As the champion is mechanically easier then some other champs, knowing your macro gameplay is the key to winning. You have mobility and dueling power, thus your goal should be creating the situation that benefits you. Track the enemy jungle, counter gank and create situations that favor Udyr's strengths. If you successfully catch enemies off guard before a fight, you can better win teamfights as they will be outnumbered. This will of course get harder as you climb the ranks as positioning and game sense of all players will be singificantly better.

AD Udyr is not a great teamfighter as his damage is mostly single targeted. In a 5v5 your best bet is bursting someone down and peeling your damage dealer. If you do not go for a tankier build, you will be punished much harder if you get caught. Build versatility is a huge advantage for Udyr so build accordingly.

The choice between AD and AP Udyr largely depends on the team composition and the enemy yet the choice isn't that crucial in soloq. As I feel much more comfortable playing as a damage dealer than a tank in soloq, I play AD most of the time. If you team has a lot of damage and its mostly AD there is no harm in going AP but in the end the choice should be the one you are more comfortable with. Play both, see which works best for you. Yet, I think it is necessary to know both playstyles to a certain extent to realize the potential of Udyr fully. AD and AP use similar runes and the build versatility is a major component of the champion.

I like having all 4 skills when ganking, especially to keep the attack speed rotation from the passive, so I mostly full clear.

Red Start: Krugs, Raptors, Wolves, Blue, Gromp
Blue Start: Gromp, Wolves, Raptors, Red, Krugs

Second ability point for both starts is R
Second ability point for Blue Start can be W if you feel more comfortable that way. R is still the better options to clear faster.

Until level 4, you can't counter gank against early game junglers like Lee and J4 unless the situation is in your favor, so focus on getting to lvl 4 before you engage them.

Counter jungling is important if you are against a champion that is weak early and is reliant on farming. You need to keep ahead to win especially against champions like Karthus, Fiddlesticks and Evelynn.

Udyr is overall a mechanically easy champ but requires a lot of macro knowledge to succeed. You should be in the position where your team listens to your calls and play according to the game plan you devise. Try to make the best out of every situation and always build and play proactively. The impact you have on the game is huge compared to other lanes. Remember that not every loss is your fault, but there is always something you can improve upon in every game.

This guide is solely based upon my own personal experience with the champ. I will continue updating the guide with new patches and feedback I recieve. I will also add more threats, synergies, builds and much more as time progresses. My future goal is to have this guide be the definitive Udyr guide for AD, AP and even other roles such as Top, Mid and even Support(it sounds funny I know but Udyr can effectively use certain support items). Thus, I am more than willing to listen to any critism that will help me improve.

I will not be repeating myself to reach the "In-Depth Guide" status as I want to keep the guide effective. I hope that as I extend my knowledge on the champ and learn from others, it will eventually reach that goal.

Thank you for checking the guide out!
Help me improve!
I want to include any feedback you might have.

You can contact me here:
discord: rainylabel

My league account for anyone interested, I was TR Udyr 3rd in Summer but can't find enough time to climb currently :)

https://www.leagueofgraphs.com/summoner/tr/RainyLabel