The basic special technique for Lloyd Irving, Kratos Aurion, and Zelos Wilder from
the game Tales of Symphonia and Cless Alvein from
the game Tales of Phantasia. A demon
fang is formed when a sword or otherwise weapon is swung downward just above the ground causing a (usually blue) shockwave to continue foward on the ground toward it's
target to inflict damage. Variations such as "Demon Fist" (as used by Senel Coolidge from Tales of Legendia) hold the same concept except are performed simply by punching forward and the same shockwave appears under your fist. Stronger versions include Double Demon Fang, Fierce Demon Fang, Demonic Circle, Demonic Chaos, and several others.