Udyr

Strengths

Damage is applied to turtle shield post-mitigation. Therefore, buying defensive items can drastically increase your survivability.
Udyr is one of the best junglers in the game. Taking advantage of this can give your team a large XP advantage and map control.

Passive · Bridge Between — Udyr has four basic Abilities that swap between Stances and can Recast an Ability to renew it with Ultimate benefits. Additionally, after using an Ability, Udyr's next two Attacks gain Attack Speed.
Q · Wilding Claw — Udyr gains attack speed and his next two attacks deal bonus physical damage. Recast: Gain even more attack speed, and the next two attacks call lightning to strike the target.
W · Iron Mantle — Udyr gains a shield and his next two attacks heal him. Recast: Gain an even bigger shield and heal based on max health over the next couple seconds.
E · Blazing Stampede — Udyr gains movement speed and his first attack against each target will Stun them. Recast: Gain even more movement speed and immunity to immobilizing effects for a couple seconds.
Ultimate · Wingborne Storm — Udyr surrounds himself in a glacial storm, damaging and slowing nearby enemies. Recast: Empower and unleash the storm, causing it to track enemies and deal additional damage.

A suggested 5-lane lineup built around Udyr, based on hero partnerships and role synergy — not win rate.