Dragon Signers

The  is a character class in Sword Art Online and New ALfheim Online. The Dragon Signers are players fused with and capable of summoning a Legendary Dragon.

Kayaba Akihiko designed this player class, but was discarted after SAO was designed as a Non class MMORPG. However, the files for Dragon Signers were retained, and some players were capable of obtaining the powers of these dragons. This class somehow appeared in New ALO as well.

Overview
To summon a dragon, these players must have defeated it previously. After this both beings fused into one. As result of this "fusion", the player earns a red mark of the dragon on one of their armm and he player gains many abilites from the dragon. The player can call upon his dragon whenever he wants to. It's necesary to recite a special chant, the mark begins to shine red and the dragon is summoned out of energy coming out from the body of the Signer.

It should be noted that for summoning a dragon you great power and energy. The souls of the dragon and the Signer are so connected to each other, that any darmage caused to the dragon affects the player and vice versa.