Having only an external tool for blood and flesh reshaping doesn't quite qualify as a catastrophe-level force.
The Black Tide possesses similar rule characteristics of blood and flesh reshaping, where any dead Black Tide Demonic Spirit can be devoured and reshaped or re-converted into Black Tide Energy.
The difference is that the process of reshaping by the Black Tide involves a percentage consumption and cannot revive seamlessly like players.
Relying solely on a resurrection ability to conquer the Monster World, the Player Corps might just be crushed by the Black Tide Disaster and the Insect Tide Disaster.
Without the support of the Superdimension's All Things Extraction Rule, players' growth would shift from hunting to tech tree development, using collected resources for technological research to enhance combat power.
Without the support of Purification Rules, the Earth Thought Evil Spirit would immediately know players' secrets by reading memories through the Evil Eye.