Cosmic Shard

Description
When the User dies, their soul reincarnates into another being and the shard warps to a random world located in the GameWorld. The reincarnated individual will receive dreams hinting to the shards location. As soon as they come into contact with the shard, the individual will gain all of the abilities, memories, and star shards that the previous incarnations carried.

In the scenario that the User reincarnates into an individual who's not a part of the Starman race, then the individual will become one upon contact with the crystal.

This star crystal shard can neither be removed or destroyed is the User is still alive, and the crystal can not be used by another individual unless it is forcefully inserted. Individuals who insert the crystal forcefully will have the crystal's powers temporarily until the crystal devours the entirety of their life force.

Nai unlike other Users of the Cosmic Shard is the first in the series to obtain it due to it being born within him upon birth. Nai uses the shard's power to take down the other Incarnations of Nai during the Time Break saga.