Does Udyr take skill?

Out of your list of the three, the skill floors and caps are as follows: Azir > Zed > Udyr. Among those three, Udyr has the lowest skill floor (that is, how much skill is required to play him on an acceptable level) and the lowest skill cap (that is, the amount of skill required to play him optimally). Udyr doesn't require any particularly special skills; he only requires that you know his tools and which tool is best for the situation. After that, you simply press a button to shift gears and take no further action.

Everything else that Udyr players may claim to be pertinent skills to Udyr play are in reality basic strategic knowledge and game sense. It's not an Udyr-specific skill to know which enemy player to target, or which lane to push, or where to be at any time.

All champions require skill, and since champion kits are different from one another. You can't really compare them.. but I would say that you could master him faster than or . Pretty simple kit, but to each his own.