Before we get started here's somethings you should know

How it started...

So it originally started out as a Monster High Au, where I made two of the characters have powers. Like god-level powerful. So to explain why they had these powers, I made an entire species called a Hellbeast, and I recently made another called Valkyries. So here we going.

Hellbeasts

As a species, Hellbeast are a broad range of creatures. Really, anything could be a Hellbeast as long as they're descendants from this specific ancestor. ( Most of the time)

A Hellbeast could extremely powerful or relatively 'weak'.

Hellbeast can be both good and evil.

They can even be just neutral

Sometimes a God/Goddess could be classified as a Hellbeast

They (and the Valkyrie's) are the oldest species in the multiverse

They can look like anything, so not every Hellbeast will look the same.

Valkyrie

Valkyries are also a broad range of creatures.

The one thing they all have in common is that they have wings.

They can be both good and evil

Hellbeast Valkyrie hybrids are common as well and are known as Hell Valkyrie.

Just like with Hellbeast, Valkyries can look like anything

Again sometimes a God/Goddess could be classified a Valkyrie

Forced Hybrids

OK, so there are people who go around in each universe kidnapping 'test subjects' to use them as pawns to try and control certain sections of that universe. Sadly, this common in each universe more so in others.

What they will do with the 'test subjects' is they use either Hellbeast or Valkyrie DNA to turn them into either a Forced Hellbeasts, Forced Valkyries, or the really dangerous combo: a Forced Hell Valkyrie.

These Forced Hellbeasts and Valkyrie won't be as powerful as a 'pure-blooded' (normally) but will be strong enough to be nearly-indestructible soldiers

Nine times out of ten, these always backfire because the Forced will revolt against their creators.

There are also gems that can make Blood Gems. (original apart of a SU au that was going to be unique to only that AU but I changed it)

Basically, a blood gem is a gem that is organic or a forced gem.

How these gems are made is a gemstone is put into the body of an organic either against their will or willingly.

These blood gems are actually almost as if not more powerful than the gems we know.

-Will add on more later-