Assassin seems ok but I feel like these changes are a bit unnecessary. The Smokescreen is now 6-seconds instead of 10? Considering that it's a "smoke" you would think that stealth as ten is reasonable. I don't know anything about the other classes because I don't play them, however for Assassin, I have a feeling they've nerfed some skills only for the sake of nerfing. There's no reason for these pointless changes, but hey I bet they thought if the other classes are changing- why not all?