So this is Kevin/Omega (origin suit) charging his attack known as CELESTIAL BEAM Ω
This attack absorbs all light from the objects the vacuum is aimed at while at the same time damaging opponents in the event horizon, then when he reaches maximum energy he releases it into a massive armor assimilating beam. This version of CELESTIAL BEAM is known more as the Finisher Move.
His other finishers are:
Jiraiya Chain Buster Slash,
Judgment Guilty,
Roed Rolla Dah,
and
Doom Endevour.

[Base damage = ???]