Moniker DeLuise is an opponent and ex-girlfriend of Jake. She makes her first appearance in "Daddy-Daughter Card Wars," and is apparently very skilled at Card Wars, being a reigning champion with her partner Grand Prix. She apparently runs a screen-printing business with Grand Prix and teaches Card Wars to kids as a day job. She appears to still have friendly feelings toward Jake.
Moniker looks like any generic pony. Her hair is yellow, and her fur is beige. Moniker's eyes are identical to Jake's.
- It is unclear if Moniker is the former girlfriend that taught Jake how to read Braille.