This Nexus can only be affected by effects that specify "Grandwalker Nexus". Core can only be placed on this Nexus through the effect of "Core Charge" or effects that specify "Grandwalker Nexus", also, core on this Nexus can not be moved except by effects that specify "Grandwalker Nexus".
Core Charge: (Song Bird, Imp, Imaginary Beast, Magician, Ogre Wizard) (Core Charge via Summon/Advent only once per turn)
◆When you summon/advent a target Spirit, put one core from the void onto this Nexus.
◆When this Nexus is deployed, if you do not control a Nexus with the same card name as this card, send the top three cards of your deck to the trash. For each target card among them, put one core from the void onto this Nexus.
Grand Skill: 3 [LV1][LV2] Flash -(Either Attack Step) - (Once per turn, send one core from this Nexus to the Void) Refresh a Cost 3 or less Song Bird, Imp, Imaginary Beast, Magician, Ogre Wizard family Spirit you control.
Grand Field [LV2] (Either Attack Step) When you use a Magic card, you can return an opposing Spirit/Ultimate to the Hand.