The Unpopularity of the Great Decisive Battle Gebra

It seems like there are few participants, probably because it's quite difficult to fight with SP attackers. Up to EXTREME, there's no freeze gimmick, no attack attributes, and not much HP, so in the worst case, you can brute-force it with a buffed-up anniversary attacker and a healer. I thought this method would be easier if you just want to get the tickets.