Heres a list of things that could improve PKing
-Add a delay between sword swings so you can't spam as much
-Make it so that you don't drop arrows or bombs if you have equal to or less than 1/4 your max amount
-Add the option to switch your sword with a bow, replacing the button with a directional pad similar to Era or Zone so aiming is easier and less of a hassle
-Reduce knockback taken outside of spar or towers
-Make it so that low AP gives you the bonus of slow regeneration in addition to not being able to heal from hearts or beds
-Add a slowdown effect on players with only .5 hearts left