Grey Fist

 is a fanfictional one-hit material Arts category sword in Sword Art Online an other VRMMORPGs.

Description
The attack consist of punchnig the enemy, with a fist ignited with the power of fire, dealing significant amount of darmage.

The skill is activated closing your left hand, bending it by the elbow and then drawing the arm backwards.

Trivia

 * The attack is based on Omnimon left arm.
 * Grey means ancient, old, etc.