A smaller version of the Event Moai Statue bases, but can attack by firing ring rays at its target. Can really be painful for A. Bahamut, especially in Rongorongo when the event enemies guard it. Its an enemy that's never fought at 100% magnification.
Use meatshields to make it discharge its attack, then strike it hard when the coast is clear. Note: Its a BASE, so only Base Destroyer abilities are useful against it.