XGaster{Underverse}

XGaster is the creator and agonist of XTale. After an event where all creation rebelled against him and the X-Event occurred, thanks to his friend Ink, he returned and received his purple soul. His adopted children, who were given to him at the beginning, are X!Chara and X!Frisk. Using his powers, he wants to create a single multiverse from all the universes in the Doodles Sphere, with the best parts of each. He watches over each multiverse.
Race: Skeleton Monster. White Skeleton
Height: 210 centimeters
Soul Color: Red (determination), purple (his power "OWERITE") and white (the very essence of the monster)
Fear: fear of mirrors
Goal: To create one huge universe from the combined parts of other universes.
Personality: Mysterious, very smart and knows everything about the future due to his magic, he shows sociopathic and cruel tendencies towards his adopted children, he rarely cares about anyone's feelings, with the help of magic he can use others as puppets, narcissism, deep down inside him there is a softer side that used to want good and create a good world for everyone.
Assistant: X!Alphys
Clothing Description: Wears a purple cloak with long, pointed shoulder pads. Across the front of his chest is a white cross-shaped belt. Around his neck is a similar "X"-shaped belt. Closer to his elbows and wrists are similar white belts. Around his waist is also a white "X"-shaped belt.
Appearance: A sharp grin, narrow eyes whose color can change to match the colors of his soul (white, red, purple), hands that look like claws with holes in the skeletal palms. Instead of legs, he has hallucinations at the bottom (interruptions of a dark purple color. If he wants, he can get his legs back). Above his right eye, from the upper right eye and up the forehead, there is a long, thin black stripe, on the left side from the lower left eyelid down the cheek.

OVERWRITE is a very powerful tool designed to alter the course of events on the timeline. Activated with a single click, it allows any user to alter reality on the timeline, as well as any thoughts, actions, memories, and roles. However, its capabilities are highly abusable, allowing the user to continuously alter reality at will, without regard for its inhabitants. XGaster is the wielder of this magic. He can create, erase what he has created, and control his creations and their thoughts.
The button itself is a magical button that XGaster can summon using the purple portion of his soul. It's a purple magical button with the purple inscription "OVERWRITE"
Other abilities: Teleportation (can teleport himself or others), Mind Manipulation. XGaster can manipulate minds using the "Overwrite" button. Resurrection. XGaster often used the "Overwrite" button to resurrect his creations.
Clairvoyance. XGaster sees visions of the future, but is not all-seeing; he can only glimpse into it. Hand Attacks. The character's weapons are floating hands that can create spikes. These can be used as an attack to stab an enemy in the soul. "Reset." A power that allows one to return to an event that has already occurred in the XGaster universe.