As the title states how powerful is he?

Aquaman Avatar of the Blue and Mera who can access her Red Lantern powers

VS

Iceman at his strongest level of power (or his strongest form) and Namor with his strongest level of power or form (including the Pheonix Force)

Superman and The Authority

Against

The Dark Avengers

Time Trapper Doomsday

Against

Merged Void Sentry

Team DC:

Martian Manhunter with Fernus level of power

Anti Crisis Wonder Woman

Aquaman Avatar of the Blue Against

Captain Atom Monarch (Nathaniel Adam)

White Lantern Kyle Rayner

Team Marvel:

Darkhold Scarlet Witch

Onslaught

Merged Void Sentry

X-Man

Apocalypse

Aquaman Avatar of the Blue

Against

King Hyperion

Team DC:

Wonder Woman

Big Barda

Team Marvel:

She-Hulk

Wonder Man

Round 1: Full Power Base vs Base all powers and equipment allowed

Round 2: Composite Versions for everyone

Team DC:

Raven

Zatanna

Plastic Man

Team Marvel:

Magneto

Agatha

Scarlet Witch

Round 1: Full Power Base vs Base

Round 2: Composite Versions for all characters

Round 1 Aquaman Blue vs Phoenix Force Namor

Round 2: Composite versions for both characters

Aquaman - Avatar of the Blue

Swamp Thing - Avatar of the Green

Animal Man - Heart/Avatar of the Red

Team DC:

Firestorm

Captain Atom

Green Lantern (Hal Jordan)

Martian Manhunter

Orion

Team Marvel:

Monica Rambeau

Captain Marvel

Mar-Vell

Quasar

Adam Warlock

Round 1: Mainline Base vs Base Full Power (Note: picture used for MM is for vibes and doesn’t represent his mainline version)

Round 2: Composite Versions for everyone (Infinity Gauntlet and Anti-Life Equation are not allowed)

Round 1: Full Power Base vs Base.

Round 2: Composite Versions for both characters

From what I understand he is super powerful. But how do you scale him and how powerful is he. You can Composite him into one version to make it easier.

Composite Versions for both characters

Monarch Captain Atom (Nathaniel Adam)

Against

Merged Void Sentry

TEAM DC:

Monarch Captain Atom (Nathaniel Adam)

Fernus Martian Manhunter

Ion 1 and Ion 2 Kyle Rayner (he can access both powers)

TEAM MARVEL:

King Hyperion and Earth-13034 Hyperion combined into 1 main Hyperion

Adam Warlock (no infinity gauntlet)

Hercules

Monarch (Nathaniel Adam)

Against

King Hyperion

Paradise X Hyperion

Marcus Milton (Earth - 13034)

Round 1: Monarch vs King Hyperion

Round 2: Monarch vs Paradise X

Round 3: Monarch vs Mark (Earth - 13034)

Round 4: Four way battle between all four

The Justice League (as pictured) + some extra members

Against

The Eternals + Thanos + Extra Eternals

Round 1: Full Power Base vs Base for all characters

Round 2: Composite Versions for all Characters