This basic guide for Udyr works well for beginners and experienced players. The main focus is to thrash up the enemy while getting those minion kills and staying alive. Most Udyr builds have you jungle all the time, with this one you only need to jungle when you're getting your *** kicked.

Your Wingborne Storm is your main key for farming, along with Tiamat.

Activate Wingborne Storm when you're next to enemy minions. If an enemy champion comes near while trying to farm minions, activate Iron Mantle and continue to attack to get a little extra health and then either escape or charge.

Having Tiamat will help you do two things.
1. Kill a ton of minions very fast.
2. Conserve your mana. (You don't have to activate Wingborne Storm as often if you need to conserve.)
The added area effect of Tiamat helps greatly the sooner you can get it.

If you need extra quick money, or the lanes are being controlled fully by either the enemy or your team then you can jungle a bit for money. Use the same method to kill monsters as minions.

If you are top lane with another champ then it may be a good idea to switch Spirit of the Elder Lizard with Aegis of the Legion for some extra defense for both you and your ally, as well as enabling you to act as a temporarily tank in times of need.

Pros:
You're a Bear. Or Turtle. Or Tiger. Or the Phoenix from Harry Potter.
Throws people off.
Great Chaser.
Ganks like a pro.
Dominates end game.

Cons:
If you start out behind in the beginning, it's hard to pull back.
Slow healing because of this build.
Don't need this build for 5v5.

You probably will very rarely reach the end of this build since it's designed for 3v3s, but in the occasion you do, your team will surely have the advantage, with you pulling much of the weight. Most of the time you will only make it to the Frozen Mallet which is fine because that will help you get a ton of kills and assists when you're charging the enemy.