Rainbow in the Dark is an ability that allows ASR to apply prism effects to his solar energy rays, allowing him to create rainbow-colored light that can split and bend in unnatural ways.
Solar Energy Manipulation
Heightened Solar Energy Absorption
ASR is able to more efficiently absorb Solar Energy, allowing him to absorb a good amount of power from the moon and distant stars.
All☆Star Requiem resembles a taller, somewhat thinned out version of his regular form, with much longer head spikes and fingers. His color scheme has changed to two shades of dark blue, and his eyes are now mostly black with glowing blue pupils in the middle.
All☆Star Requiem remains unable to generate his own solar energy, having to rely on outside sources to provide it.