Spicy Coaltana's combat skills

Regarding Spicy Coaltana's combat skills, I have some thoughts.

I wonder if this weapon will eventually have an area-of-effect skill similar to the Mysterious Man's. If so, my idea is that the trigger mechanism could be designed as follows:

It relies on "perfect" blocks to accumulate a charge gauge. However, the charge gauge should be designed so that it's not easy to fill the required number of blocks when fighting a single enemy or an enemy with low aggression (in normal combat, without intentionally stopping to wait for a block).

When facing three or more enemies, or enemies with high aggression like the Tarantula, the number of blocks is easier to fill the charge gauge. When the charge gauge is full, the combat skill can be activated. The total damage of the combat skill is "shared" by surrounding enemies. This combat skill damage cannot be too powerful, otherwise other weapons will lose their luster, but it can have some damage that helps in this battle, since it only relies on "perfect" blocks, and perfect blocks especially require some skill in group battles. Alternatively, some weapons could also develop their own exclusive active skills. However, this could be a huge undertaking.

Another idea is to fill the power gauge with both perfect parries and damage taken, which also sounds promising.