A champion being "easy to use" does NOT = BEING EASY
So just because you can point and click away with Zed, doesn't mean you can use it intelligently. Some players will abuse champions abilities but with bad timing.
Example:
Scenario 1: Fizz dodged 1 ability, but the opponent has an ultimate waiting. Gz! you were able to easily dodge an ability, but still got baited. (Possibly dead)
Scenario 2: Fizz takes an ability, but dodge's an ultimate.. (Possible kill and leaves a larger window for counter)
Pressing abilities is easy, but to tie them together to make the champion work, is an entirely new struggle.
who has really easy mechanics but is far from easy to play because you have to deal with all the enemy threads with low resources in terms of peel.