I have known about this combo for a while, but I have kept it a secret because it was so cool!
Here it is:
With the default sword (forgot the name), approach an enemy and press
Square, Square, Hold Triangle (enough to launch them but not enough to fly up yourself)
While they are in the air, jump and press
Square, Square, Triangle to slam them back down (they should be at less than 50% health now)
And usually they will try to block or parry so just press
Triangle, Square, Square
And finish off with L1+Square.
That should actually be more than enough to kill them, but I forgot how many Square's were in the combo since the beta has been shut down.
Hope you guys like it