This is one of the Mechas found during the Arthurian VS. Pirates War!! It was introduced during a War, and is only available in the game during the event, or possibly never again.
This event occurred from 05/29/2009 to 07/02/2009.
Assault Raider SE
This raider mecha is designed for punching holes into starships and boarding them. STAR CAPTAIN BONUS: Weapons have unique abilities that are only accessible by Star Captains.