Void Entities

Despite their specific name and nature, Void Entities can come in every flavor and kind. While powerful, all Void Entities follow the same basic formula:

1. The creature finds and destroys their infinite copies
2. The creature steeps in Void Energy
3. A Void Crystal is grown and becomes bound to the creature

All Void Entities follow this same path, regardless of the details. While some like the Voidriches do this naturally at or before birth, others can spend decades as a normal entity before finding themselves in possession of their Void Crystal. Due to the above nature, there are two constants that can be determined about any Void Entity: first, they are singular in their narrative existence, and don't create timeline forks in any way, and second, they will attempt to remain in contact with their Void Crystal. While the effects can take time, separating a Void Entity from their Crystal is lethal, and in all cases is the only way to properly kill a Void Entity. While most Void Entities are immortal due to their Crystal, most are not immune to harm. Many can even die in a classic sense, as their physical form is not impervious to damage. Those that do, will eventually find themselves back in reality, either by subsuming a theoretical timeline that never existed, or by reconstitution. Their method can vary from creature to creature.
Notable Void Entities:

• Nexus

Void Entities also come in different levels: Level 0: Not actually a void entity, as they do not fulfill the above requirements, but they do somehow channel void energy, or otherwise regularly travel the void. Level 1: Basic void entity. Doesn't directly manipulate void energy. About as harmless as a void entity can get. Level 2: Dangerous. manipulates the void. Either non-sentient, or is unaware of how they do so. Likely looks like magic. Level 3: Sentient. Basic sentient void entity. Understands their power, but hasn't trained with it. Can open Void Rifts. Level 4: Trained. Has a firm understanding of void manipulation. Understands things like void piercing, and can open Rifts without damaging the veil. Rare. Level 5: Expert. Extremely dangerous. Can twist the fabric of the void in unplanned ways. Likely has, or at least can, pull open void pockets. Understands the fabric. Lethal.