(Obstruction) Tragic Bástya Twins

Lore
Lotwa used her enhanced magic to animate Latwa's corpse. It was the least she could do to repay her sister, for it was her sacrifice that made their forces irresistible. When the enemy spied them charging forth on chariots, ablaze with green flames, they realized there was no hope of survival. Such was the twins' infamy that they were the base for the rook pieces of the evil Devil's Chess Set.

Acquisition
See Tragic Bástya Twins

Name origin
?

Additional Info
Hidden Boss during the Salvation's Checkmate Raid Event.