The first hit on a target deals +55 % damage, the second
+45 %, the third +30 %. After that the blade is dull against that
particular person.
The counter is per opponent: you can land three boosted hits on one
player, then three more on the next. It resets after
10 seconds without touching them.
It is the kit of the clean engage. Hit hard immediately, then
break off to sharpen again — the opposite of what a normal player does.