the final jump modifier, blink instead of double jump, has a few bugs that probably need to be looked into. Sometimes it refuses to go forwards, so jumping up some ledges is bugged. Blink also removes the temporary invisibility from blink strike, double jump doesn't. also it has a few second cool-down so if you needed to jump away from something in PvE rapidly, like rockets from a few strike bosses. you're unable to do so. Kinda disappointing that you can't take use blink as often as needed, or blink and blink strike's invisibility.