I started playing Udyr to see if people were right about him being REALLY good. And I must say he's one of the top champions right now, but...He's still easily counterable. I've seen bad udyr being fed up and still failing with him. I 1v1'd a udyr with ashe in practice and he could never kill me before level 16-18. Which means if you keep udyr from farming like twitch and teemo and Yi he's shut down.
Use exhaust and rally and take him on 2v2. Of course he's pro in 1v1, but 1v1 don't mean ****. even with blind dart he's shut down. Annie and Veigar are a really good duo agaisn't him.