Elline is a magical paintbrush fairy who debuted in Kirby and the Rainbow Curse. She is friends with Claycia, and they both preside over the clay-based world of Seventopia. She encounters Kirby when Claycia goes mad and tries to kidnap her using Grab Hands, and they both set out to return Claycia to normal.
Elline is responsible for painting the Rainbow Rope which Kirby uses to get about in Seventopia. She can also transform Kirby into one of three different forms - the Kirby Tank, Kirby Rocket and Kirby Submarine.
Elline is essentially an anthropomorphized paintbrush with wings and disembodied hands. Her torso is colored magenta and she has peach skin. She can use her brush hair to paint things and, when necessary, can transform herself into a more ordinary-looking paintbrush.
According to her concept art, Elline was planned to have feet with red shoes.
Elline is very child-like, and only truly wants to paint things that Claycia sculpts. She keeps a Secret Diary which can be collected in pieces in the Goal Game of Kirby and the Rainbow Curse. She considers Kirby and Bandana Waddle Dee to be friends, having had to save them from petrification when all the color was stolen from Dream Land. They in turn saved her by driving off the Grab Hands that were after her.
Elline makes her Super Smash Bros. debut as a spirit in Super Smash Bros. Ultimate, and is obtainable in World of Light. Her location is on a ribbon-like strip south of where Kīra, the Lord of Light, makes his lair before the player defeats him. She is an advanced-level support spirit who provides the host fighter with a Fairy Bottle at the start of battles, likely a reference to her spritely nature. In the adventure mode, she is portrayed by a tiny Palutena.