Bloodjade

The Bloodjade is the first Modo Esper that you get, you should be using it until 75 where you can get different Modo Esper via the quest or an Esper Mystic.

The Bloodjade grants use of the skill Scarred Jade, which attacks one target using an awesome-looking animation and a base AP increase. Like all esper skills, Scarred Jade can upgrade your esper when your proficiency maxes out.