A technique that allows for the character to move in the opposite direction while dashing. This move can be done by all characters, and is often used to gain backwards momentum for a jump. If done correctly, it can be crucial for edgeguarding and ledge grabbing.
Luigi has the longest wavedash range in the game because of his low traction. Luigi's slow run and aerial speeds are made up for with his obscenely long wavedash. Luigi has one of the most unique recoveries in the game, as his up b only sends him vertically, and his forward b sends him horizontally. When using the two in combination, he has a very adequate recovery.