User blog comment:Udyrthegreat/ My Buffs for Outclassed champions/@comment-4431813-20120819112019/@comment-70.180.103.2-20120821022851

Since you say you have never played Udyr, I will inform you. Udyr has mana problems and no gapclosers.

To put his mana problems in perspective, Udyr begins with 250 mana and each of his abilities at rank 1 costs 55 mana. That means you can only activate (most of his damage comes from when he activates a stance) or change stances about 5 or 6 times before you run out of mana. The only reason Udyr overcomes his mana problems is that ranking up an ability lowers its mana cost by 5. As you would normally level up your offensive ability, your utility spells will usually drain your mana the most. As Udyr has no gapclosers and will take a lot of damage chasing someone, that Turtle Stance shield is very important to activate.

To put his lack of gapclosers in perspective, play anyone with a ranged slow and use it on Udyr and run away.