This Nexus can only be affected by effects that specify "Grandwalker Nexus". Cores can only be placed on this Nexus through the effect of "Core Charge" or effects that specify "Grandwalker Nexus", also, cores on this Nexus can't be moved except by effects that specify "Grandwalker Nexus".
Core Charge: (Primal & Cost 3 or higher) (Rebirth Nexus) ◆When you summon/advent/deploy a target Spirit/Nexus, you can 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, you can 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.
[LV1][LV2] One of the Rebirth cards sent to trash by this Nexus' Core Charge is added to your Hand.
Grand Skill: 4 [LV1][LV2] Flash - (Either Attack Step) (Once per turn, send four cores from this Nexus to the Void) Refresh a "Primal" family Spirit you control.
Grand Field - [LV2] When you are summoning/deploying/using a "Primal" family card, fill one of its reductions. This effect doesn't stack.