I found out this new advanced technique with Lucas. Only I know it, and since I have the best Lucas in the world, Imma gonna share wit' y'all.
Okay. I call it the PK Zaki.
Alright, when you tap Y or X (Or if you have custom controls, the button that allows you to jump), your feet move off of the ground for a couple of seconds. Now, when you tap said specified button quickly, the height of your jump is slightly decreased.
This is called a Short-Hop.
Now, when you short hop, immediately execute Lucas' forward special, and a lightning bolt should shoot out of his fingertips, catching the opponent in a small whirlwind of fire.
I call it a Short-Hop PK Fire. But that name is way too long, so I just go with the PK Zaki.
Hope this helps guys!