User blog comment:JmLyan/Chance, the Random Number God/@comment-1330314-20130723001424

Did a bit of math: with the current distribution on your E, the chance of landing on at least one mine is approximately 33% and the chance of getting absolutely nothing is around 62%, which means the chance of getting anything good is about 5% Unless you rig the RNG, this is an ability that will harm Chance more than five times as frequently as it'll aid him.

Though I may be a bit biased as I generally dislike randomness in games, I think Typhron and Marko are right in that you need to give Chance a way to control some of his randomness. Currently, there's no real way to play him; you just mash his abilities and hope everything turns out for the best. Instead, you may want to consider making his randomness scale with itemization (for example, the chance of dealing bonus damage on his W could be determined by his crit rating). You should also remove the negative outcomes of using his abilities (and buff the ineffective endpoints), as abilities are supposed to provide some kind of advantage, sometimes even when misused. Your kit currently punishes players just for playing him right.