In Ninja Gaiden, when you block, you have the option of dodging by flicking the analog stick in any direction (and having a "perfect dodge" when you time it right) so, I'd like to at least fuse Royal Guard, Trickster, and the Dark Slayer styles (only for Vergil though) together at some point.
"Compacting" might be a good way to not clutter everything.
In DMC3 & DMC4, Dante has
two "rising uppercut" move (Rising/Divine Dragon and Real Impact), which I think is redundant.
In DmC, they simply compacted the two moves into one, via Uppercut.
I was also thinking that R1 should be the dash & sprint button.
Instead of "hold R1 to walk slowly", it should be "hold R1 to run very fast".
You tap R1 + direction with the analog stick to maybe dash or roll away, while keeping the stick tilted and the button held down will allow Dante to sprint.
And if you press a weapon button while doing this, you'll do a signature move, like Stinger.
I can totally imagine Dante sprinting into a Jet Stream, Reverb Shock, Revolver or Kick 13.
To get a feel of what I'm talking about, play Metal Gear Rising and do Raiden's slide attack while Ninja Running.
Even the input is the same: R1 + Forward + Triangle, except that you are more agile and you don't need to lock on to an enemy to execute the move.