Grand Skill (神技・グランスキル, read as Grand Skill, but written as Divine Skill) is an ability currently only possessed by the Grandwalker Nexuses. The wording is read as follows:
- Grand Skill: X [LV1][LV2] Flash - (Send X cores from this nexus to the void) Additional effects
Grand Skills are effects which send cores from the Grandwalker to the Void in order to be activated. While the Grand Field can be interpreted as the average passive effect of a Nexus, the Grand Skill is akin to an effect of a Magic card.