He has Raijen and Negative Flash to help him do it.
The Flash #40 cover by Carmine di Giandomenico and Ivan Plascencia
Okay, I'm going to start off with what actually works about this comic before I tear into this thing I didn't like it It's one of the better issues of Flash that have come out[...]
negative flash Archives
[rwp-review-recap id="0"]
Meena Dhawan has absorbed the Negative Speed Force out of Barry Allen, becoming the Negative Flash She explains how Black Hole saved her from the Speed Force, and she blames the Flash for getting stuck within the dimension in the first place She abandons the Barry and Wally to be captured by Black Hole.
Flash[...]