Lore: Klaus's home universe was created via by three wishes made from an reincarnator from Earth who was obsessed with various franchises from the life he had before he died. The wishes were granted by none other than the Original Gods themselves except for the first Omnipotent Being and the reincarnated Soul was reborn as a Kryptonian on the Planet Krypton as he was sent to Earth alongside Superman

Here's his appearance after he reincarnated:

Name:  James Connor/ Jay-Ki

Age: Same age as Klaus

Height: 6'2

His story began like any other person who was reincarnated into their respective dreams in what they wanted when they brought their fictional characters to life after their from a wish or in his case three.

His first wish was to obviously to be reborn as a Kryptonian and for his DNA to not be used for the purpose of cloning.

His Second wish was to bring all the franchises he's seen into his past life into one universe regardless of the consequences.

His Third wish was to have limitless potential in growing stronger.

Powers and abilities:

Advanced Kryptonian Physiology: Under the effects of a yellow sun, Sam possesses the same potential powers as an average Kryptonian but they are ehnanced. These include:

Solar Energy Absorption: Under optimal conditions, this is the main source of Sam's super powers as they are contingent upon exposure to solar radiation from a yellow sun star system. His biological make up includes a number of organs which lack analogues in humans and whose functions are unknown. It is believed that between one or more of these and his bio-cellular matrix, "yellow" solar energy is stored for later use. This allows for the use of these powers to fade when yellow solar radiation is not available instead of immediate failure.

Cosmic Energy Absorption: Sam's solar receptors can also absorb cosmic energy. So much that he felt like he could crack the Universe in half with a footstep if he wasn't careful.

Soul Energy Absorption: He can even absorb the souls of other beings.

Superhuman Strength: His strength is augmented by yellow solar radiation interacting with the greater than human density, resilience and biological efficiency of his musculature. His strength is more an act of conscious will on energy fields than actual physical strength. It is this act of conscious will that enables him to perform physical feats that are beyond the mere application force, such as moving a mountain top without said rock crumbling under its own mass.

Shock Wave Projection: Sam is strong enough to create powerful sonic booms with just the clap of his hands. These sonic claps are powerful enough to be heard across multiple universes.

Nigh Omnipotence: Sam is able to manipulate any external force for any effect he desires. He is capable of creating anything from living beings to entire multiverses.

Dimensional Travel: Sam can instantly transport himself and others across dimensions, as well as outside of creation.

And he also possesses abilities that rival that of Klaus to an extent...

His strongest state:

He was the first being to defeat Klaus in battle though it wasn't easy considering that he almost died against him and Klaus wasn't as strong as he was when compared to now back then...

Franchises that are in this universe were:

MARVEL
DC
TRANSFORMERS
KILL LA KILL
INVINCIBLE
SUPERNATURAL
DRAGON BALL
FATE SERIES
ONE PUNCH MAN
ASURA'S WRATH
HALO
WITCHER
GODZILLA