Overall, interesting idea, and you really nailed the flavor. From the titles, the flavor text and what the abilities do.
Grasp the echoes is very interesting, I’m not sure about the power level, but it’s an intriguing ability.
Possibility storm is flavorful and nifty.
Back with a Vengeance – that’s so cool!
Paradox Rush seems wild, I’m not sure it’s balanced, and will slow down play, but it’s an interesting idea.