Gems of Power

The ShadowGems are made from a materiel from Limbo, the native name is unknown, but most refer to it as Limbite. 5 were originally made to kill the Demi-God of death, Heric, but Heric fused with 1 of the ShadowGems, so the old Legends used the remaining 4 to seal him away, There are currently  only 3 due to Corruption being made of the Corrupt ShadowGem. Only one Universe has the ShadowGems, Dimension 1, The Gems of Power (Any powerful gemstone made of Limbite), have certain rules, here they are. The current Power Gem holders are the Legends, 

Vane: X ShadowGem

Falcon-I: Nega ShadowGem

Blitz: LuminoGem

Sam: Custom Gem

Dragoneye: Mega ShadowGem

Heric: ShadowGem

Corruption: Corrupt ShadowGem

1. You can't have more than 8 in a dimension at 1 time or else it will crumble like a cookie.
2. If one is destroyed all of the Exoverse will be destroyed (Even Custom) 
3. They have a certain user chosen, no one else can hold them besides the users.
4. Only one of each Gem can exist in the Multiverse.

After Corruption escaped Limbo, the LuminoGem is awakened. It is as powerful as all 5 ShadowGems together, but can only be used against said gems, or things under their influence. No one knows how this Gem was truly made, all they know is that the gem appeared as Corruption did. It has been theorized that this gem was what the gods used to create the Multi-verse, Koris, but know one knows for sure (except us ;D).

Holder: Blitz (The Only One Not Fated To Hold A Gem)

The ShadowGem is the base Gem Of Power that all others are based off of (Bar Custom Gem). It is the most basic of all of them, simply being a power source. The first ShadowGem made with the others to kill Heric, but he took this one for himself instead, only allowing him to be sealed away in Limbo.

Holder: Heric (Forcefully, The True Holder Is Unknown)

This ShadowGem's power is unknown it seems to mimic the other ShadowGem' s abilities, but no one knows for sure. It is what created the Mimiks. This is the Blood God family's prized possession, and has been passed down through the generations.

Holder: Vane

This ShadowGem has the power to create creatures, making the Munchfin, Finser, and ShadowHawks. It has the energy to power the Multi-verse by itself, but is very sensitive to water, which is strange due to it creating 2 aquatic creatures.

Holder: Falcon-I

The Corrupt ShadowGem is as the name suggests all it does is corrupt things and take over their mind. What it implants in there is a mystery, but due to context with past encounters, it's probably not good.

Holder Being: Corruption

This gem allows the aura of other beings to sensed, but unlike the other gems, which just have their power maximized by being with their holder, it's power can only be used by the holder, witch follows the dragon blood line.

Holder: Dragoneye

The Custom Gem is an "ancient" relic that gifts the holder 6 powers, but the dimension it's in has a hard time staying together with it's entire power abused, so Sam usually only uses two of the powers at once.

Holder: Sam