Bone

="heh heh heh heh..."  - sans (Sanz, サンズ) =

Summary/Appearance
Bone is a removed item that could evolve King Crimson into its shiny variant, Sans Crimson. You could obtain it by waiting every few 15 minutes or so, with a 1/4 chance of it spawning on the map.

Appearance
a literal bone

Features

 * This item will disappear if you take it out from your bank.
 * It was used to obtain Sans Crimson.

Evolutions
(King Crimson + Bone) - Sans Crimson

If you used bone on King Crimson, you would then obtain a shiny variant called: Sans Crimson