Dark Speed Force Energy

 is a rare catalyst which can be used in the process of upgrading Adaptive Augments related to the Metal Part I episode.

Obtained from

 * Metal Pt. I: Batcave Breach
 * Metal Pt. I: False Idols
 * Metal Pt. I: Monsters of Metal

Trivia

 * One piece of Dark Speed Force Energy is needed to breakthrough milestone rank 15 of an augment.