Cresselia

Cresselia is an legendary Pokémon featured in both Pokémon Diamond and Pokémon Pearl. Cresselia appears as a background hazard in Super Smash Bros. Brawl, in the unlockable stage Spear Pillar, along with Dialga and Palkia. When Cresselia appears on the stage, it will shoot blade-like energy beams (which resemble boomerangs) which fly freely around the stage hurting anyone it comes in contact with. Cresselia may also sometimes use Psycho Cut, which sends a sharp beam straight down throught the center of the stage.