May 18, 2013: As the trio tries to explore the Yaschas Massif, another Altas-esque creature attacks! These creatures must be directly linked to the paradoxes. It’s a brutal boss fight. It inflicts Wound and constantly casts Deshellga, Deprotectga, and area-of-effect spells, making the Sentinel role basically useless. So annoying. In the end, a boomerang banishes the beast with an electromagnetic pulse attack. There’s only one Final Fantasy XIII character that uses a boomerang: Hope.
You don’t even get much for “beating” the invader.