Grand Death is one of Negative's creations, and is currently the most dangerous of them all. Grand Death is based off of the Kirby's Return to Dream Land boss Grand Doomer.
Grand Death was created for large scale battles by Negative with the help of Dark Star. With Grand Death's help, they managed to destroy and conquer many galaxies, planets, and solar systems. During the Battle of Arcoria, Grand Death was nearly killed in combat with the starship known as the Ark. Grand Death managed to survive, and destroyed the Ark's front. The ship was later destroyed, but not before Grand Death went through a mutation. This mutation caused him to look like what he looks like today.