Great Decisive Battle Gebra

The gimmick itself is simple, but the problem is the lack of character substitutes and that while other bosses are fine as long as you don't get unlucky, Gebura is bad even with good luck. It's difficult to rank high on mobile.

It's difficult for anniversary characters and the like to shine, which adds to the challenge. If you can borrow a strong attacker, you might be able to clear it with a reasonable difficulty while dealing with the gimmicks.