Alright, for those of you who don't know who Abysss is, he appeared briefly in Death Metal and he can do EXACTLY what Mikaboshi can do. Sure, he cannot shape shift, but who cares? The guy can consume the entirety of space around him, matter and energy.
Quote from Marvunapp " Powers/Abilities: Abysss possesses vast destructive abilities, enabling him to consume virtually limitless amounts of matter and energy. He can consume stars, planets, and even the "stuff of space itself," such that he is able to obliterate entire realities. Although he much prefers the empty void, he can also create animated servants--possibly even living beings. Abysss does need air, heat, or almost anything else to survive. He is fed by the matter and energy he consumes. He enjoys the negative existence of the Void, and loathes "foul matter" of any kind."
Well the others should be well known enough, so, can the fearsome Mikaboshi take on these mere obscure entities that apparently pale to them magnificence of Amatsu-Mikaboshi? Or is Mikaboshi simply not he Multiversal threat he was made out to be?