The Expansion Wave was developed by Baracuss and soon became his signature technique. The main blast is fired from the user's main hand (The one he/she uses the most), then gains a boost from the other hand causeing the beam to Expand. When Baracuss uses the Expansion Wave in his normal form, the blast apears in a light blue color. But in Super Saiyan or Higher forms the blast becomes blood red.
The normal expansion wave has enough power to obliterate an entire city before it expands.
The Super Expansion wave starts off at the size of a normal expansion wave after it has expanded, then grows over 4x larger.
The Final Expansion wave is a planet destroyer. Unless it is aimed straight up when fired, the expansion will catch the Earth and rip it apart.