Barbatos

The feature of [Frozen Barrier] that came with the Spiritual Land being upgraded to the third tier provided absolute defense for any attacks of the Legendary rank and below. It didn't matter if it was a single Legendary individual or hundreds attacking the Spiritual Land, as long as the one minute of defense did not run out, no attacks would bypass into the Spiritual Land.

This was because the energy the Spiritual Land could provide to keep up this barrier exceeded any damage that Legendary ranked individuals could inflict, thus it could be called an absolute defense. But in the case a being at the Mythical or Phantasmal rank was raining down attacks on the [Frozen Barrier], what would happen?

The energy that the Spiritual Land could provide would not be able to keep up with the damage being dealt, and naturally, not even a minute would need to pass before the [Frozen Barrier] would be broken through.