Please remember this is a blog I am welcome for any new idea to take away or add on to this species attributes.
Shadows are a lesser-form of demons that normally fight as a pack.
They can attack in two ways :
1: They can mold together and become one stronger fighter
2: They are naturally made of a liquid known as Liquidus Acerbus and can go into a person and posses them temporarily.
Physical attacks are useless to use on shadows because they can change into dark liquid but enchanted weapons will hurt them unless the weapon is enchanted with darkness. They have the ability to mold themselves into a shadow form of a object (sword ,spear, armor, etc) though this has its limits as it can only stay around the same total area of its normal size.((can't be a giant but can be a normal sized sword)). This helps them as a pack because they can make a rain of spears or a armored shadow with weapons to fight.
Weakness: Any healing or light-generating magic will instantly desintergrate and destroy them.