Power Suit

From the Super Mario Wiki

The Power Suit is one of Samus Aran's suits from the Metroid series. When she uses her Final Smash, the Zero Laser, and turns into Zero Suit Samus during the game Super Smash Bros. Brawl, her armor falls off and can be thrown at other players. It is unknown if the suit will be left on the ground for the whole battle or if it will just be for a short time, like most other items.