As an "Echoer," every attack would turn into a large-scale splash, echo, and shock. When facing multiple targets, it became extremely handy.
Once the Echo Force was attached to Sodom's attack, every swing of the blade created an ocean of golden flames that surged and splashed onto bystanders, then continued to spread to the next person.
The effect of Gomorrah was even more spectacular because when the Echo Force was stacked on it, Li Aozi realized: this possession effect was diffusive.
It directly liberated its own combat radius; after a successful possession, the Echo Force spread out, immediately moving to the next person, and if the next person was hit, the effect of possession spread to the next after them.
After several iterations, in the entire nightclub, not one of the 100 or so Zeta-Tiered Powerhouses could use their extraordinary power.