User blog comment:BerryBandit/Mechanically demanding champions/Quick decision champions/@comment-8300569-20130622182317

My list of mechanically demanding/Quick reaction time champions are (from hardest to easier):

1. LeBlanc (This is the key to win for LeB, otherwise you become useless)

2. Fizz (That jumping and ultimate change whole teamfight)

3. Kayle (Your enemy knows he/she is screwed when you use it at proper time)

4. Ziggs (Do I need to explain?)

5. Brand (You have to decide a combo in nanoseconds the combo you will use to change a teamfight)

There are lots of champions where you need to quickly decide what you will do, but these champs I mentioned have hell of a burst and no durability in combats.