I know this is never going to happen, but i believe pking and sparring would be better if we could use more moves than just slash. Maybe like a charging (running ) strike that does one whole heart (2 damage) and a block/shield that stops damage from any attack to the front of the player, (cant be held down of course)
Maybe a spin attack that requires 3/5 a second to charge?
Of course all these moves would be given on default or have a easy quest to learn them, not paid for.
I just feel that these moves would make sparring more... Complex.. And have more a style/ strategy.