Take your strongest robot into the 7-day boss battle against Diablo.

"Enter the 7-day Boss Battle and face Diablo, a powerful opponent built to test your combat skills. Choose your strongest robot, adapt your strategy, and overcome Diablo’s corrosive attacks and defensive abilities before the event ends. Defeat Diablo to earn Diablo Transform Cards, upgrade your robot, and unlock the next stage of your fighter’s power. "