"No wonder the villain organization can't defeat you guys; leveling up on the spot, who can stop that? I just didn't expect that deities are only responsible for triggering mechanisms, and the real war is fought by the people."
No wonder the Holy Paladin once said he was revived twenty times by his teammates using the Resurrection Technique. Even a spatial annihilation explosion couldn't erase his soul. The mortals of the Fifth Era are truly strong.
Perhaps the individual thinking power limit is not as high as the mortals of the Sixth Era, but they are a group, and fighting has always been about the Sea Tactic. You might be able to blow up the Universe by yourself, but we can also do it as a group. After a bit of thinking, the combat power becomes equivalent.
Moreover, they can level up on the spot. This is truly an "ability unique to righteous characters"!