FLASH

Who doesn't love this skill, although after a prolonged fight it doesn't have much uses except maybe picking up the next big thing that happens to spawn quickly and effectively. A lot of talk about taking it off the GCD is needed but this would honestly hurt the skill more than you think. I would rather switch it around to have a combo potency off say riot blade making it the third combo in a chain.

Fast Blade > Riot Blade (gives MP) > FLASH (blinds target ignoring diminishing return and triples the enmity generation)

This would allow for more fun during mass pulls also during those pulls we flash so much as it is that the blind passive is effectively useless after it off from the third hit. Also Buckler type shields would become more popular due to their block rate for more DPS.