Hey everyone :) My name is DivineBlaze (Feel free to add me ingame ;). I'm probably not the most experienced player on the planet, but hey, why not make a guide anyway. So this is my Tank Udyr Jungle build for season 6. I hope you enjoy and please, leave any comments or feedback because it would be extremely helpful :)

Smite Pretty obvious why you need this for a jungler. Don't really need to explain.

Flash I really like using flash because it is quite versatile. It can be used to get out of tricky situations or used to initiate.

Ghost Most people consider ghost as the poor mans flash...I think not! Yes I prefer flash but ghost is an alright replacement, this is true because Udyr relies on movement speed to gank.

Ignite Ignite could be viable to get some more early game kills, but you will lose movement.

Most of the other summoner spells aren't that viable, but at the end of the day the decision is yours :)

2x Quintessence of Attack Speed This is for the extra attack speed which helps with jungle clear speed and Udyr's main damage comes from auto attacks.

1x Quintessence of Movement Speed The extra movement speed is useful because Udyr relies on speed to gank.

9x Mark of Attack Speed This is useful because you are using one of your quintessence slots for extra movement speed, so the 9x marks make up for it.

9x Seal of Scaling Health This is useful because it gives some extra health, which will make you slightly tanker.

9x Glyph of Cooldown Reduction This is good because your stances will be on a lower cooldown which you can use them more often, and this will also help triggering your passive Bridge Between

Resolve

Unyielding vs Recovery
Take Unyielding because you don't need the extra health recovery because of your life gain from Iron Mantle's passive.

Explorer vs Tough Skin
Take explorer because you need the extra movement speed for ganks. The basic attack damage reduction from tough skin won't make much of a difference...

Runic Armor vs Veteran's Scars
Take runic armour because it impacts your Iron Mantle's shield. Veteran's scar dosent give you much of a health bonus.

Insight vs Perseverance
Take insight because the reduced summoner cooldown speed means you can Smite more often, aswell as Flash or Ghost. You don't really need the extra health regen from Perseverance because of Iron Mantle's passive.

Swiftness vs Legendary Guardian
Take swiftness because you are able to escape fights easier and run to gank champions without being slowed. You don't really need legendary guardian because you aren't the best outnumbered fighter, you can take if you want.

Grasp of the Undying vs Strength of the Ages vs Bond of Stone
Take strength of the ages because you've got enough life stealing capabilities so I would rather the extra health, you can take grasp of the undying if you want more life steal. I don't recommend bond of stone because you aren't full tank.

Cunning

Wanderer vs Savagery
Savagery is great because your damage comes for auto attacks. You don't really need wanderer because you need movement speed in combat.

Runic Affinity vs Secret Stash vs Assassin
Great for having the smaller buffs for longer. Udyr works great with Krug buff because you will be auto attacking, so why not add in another stun? You don't need secret stash because of life steal. Assassin is okay, but you are not a mid laner.

Merciless vs Meditation
Take merciless for executing runaway players :3 Don't really need the extra mana...

Bandit vs Dangerous Game
Take dangerous game so you can restore some of your health and mana after kills and assists without recalling. You aren't a support, so don't take bandit.

At the end of the day, choose what you think is best for you, or what you prefer :)