In the Cosmic Entity Guardian battle, the real fighting is still carried out by the guardians of the Cosmic Entities.
Cosmic Entities are powerful, but they don't engage in battle against each other.
Or rather, it's not guaranteed that a Cosmic Entity is stronger in combat than its guardian!
Cosmic Entities are like wealthy patrons, while their guardians act as their bodyguards.
The power of the sacred auras, in the hands of a Cosmic Entity, is akin to money. The guardians of Cosmic Entities use this "money" to strengthen themselves in various ways, earning more sacred aura power for their Cosmic Entity's universe, and thus receiving rewards…
To other Cosmic Entities, William might only seem to be at the Stellar Level.
Because they believe Dolly enlisted William for combat, they deduced that William is a stronger Stellar Level entity.
If a Cosmic Entity cannot create strong beings, it's normal to hire mercenaries.
