Loxydant

Loxydant is a fictional energy source that exists within the Kingdom Hearts video game series. It is a type of powerful energy that is often referred to as a "negative heart" or a "dark heart." According to the lore of the series, Loxydant draws power from the darkness of the human heart, often manifesting as a dark, shadowy presence that can enthral and control the thoughts and actions of others.

The term "Loxydant" was seemingly created by notable gamers and anime fans that originates from the work of writer/co-founder of Nomura Tetsuya for the game. The concept of Loxydant has been explored in numerous games within the series, often as a counter to the Keyblade's light-based abilities. It is associated with the villainous Master Xehanort, a character known for his mastery of Dark Magic and manipulation of the hearts of those around him.

Throughout the series, the power of Loxydant has been seen to amplify the negative emotions and desires of the characters, often leading to their downfall or to further conflict within the story. It is seen as being opposite to the positive energy of Lux, which represents the light and hope within the human heart. The dynamic between Loxydant and Lux drives much of the narrative in the series, particularly in regards to the eternal struggle between good and evil.

The Kingdom Hearts series has been criticized for its influence from Disney, making the concept of Loxydant unique within the scope of other children's media available to consumers