What would this ability fall under?

[PrimeHydra64]

Here is what I mean "Pico's 'Ten-no-Sabaki' is a very powerful ability that makes the target's body reproduce the damage it has inflicted on the enemies it has defeated so far. To resist this, it is necessary to have at least some kind of higher power of alteration, such as law, event, or fate."

 

[Arkansalter2]

Damage transferal.

 

[Lycoris4812]

Yeah, what they said.

 

[PrimeHydra64]

Oh wait, it seems like it damages targets from how much that target has damaged other things up to that point or all damage an opponent has dealt on an another person.
"Divine Judgment applied damage to foes based on how much damage that foe had dealt to other opponents up to that point. It was an event changer type and an unfairly strong one."

 

[Lycoris4812]

Oh wait, it seems like it damages targets from how much that target has damaged other things up to that point or all damage an opponent has dealt on an another person.
"Divine Judgment applied damage to foes based on how much damage that foe had dealt to other opponents up to that point. It was an event changer type and an unfairly strong one."

Still damage transferal or damage boost.