Earth X Absorbing man VS JLA Full Roster.
This guy is an absolute team wrecker, he absorbed ultron and became a living computer, able to store and calculate the properties matter and absorb it even if he's never touched it.
He took shots from SS with no problem, then absorbed the cosmic power, and shot back.
He could even possibly become Anti-matter.
He absorbed the whole entire island of Manhattan with no problem and became a few hundred feet tall.
Could the JLA do it?