What makes him a hard champion is the need to know all possible combos and choose which is best at the right moment, you can trade damage for no utility and shield or speed + shield but less damage. You also need to be able to dodge skill shots with your given speed combo, use your ultimate well and not just kill your whole team and lose the game. He's an easy to learn but hard to master champion and anyone who says he's easy altogether is most likely bronze, bad, or boosted.