The nerf really hit the class, as a experienced player with sbs, the class kinda needed a nerf with the new update.
But limiting the stacks to 3 it really seems to much, what I would suggest, it's to make the debuff of our ultimate purifiable.
The class really had a huge nerf on it's damage potential.
I know a lot of players will be disagreed with me, but sadly those players are always the same that complained about the class before, with out even trying to understand it and trying to know how to counter it. They see a big damage then they are like "it's broken needs nerf" but they don't realise that "those big damages require combos to make it happen.