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: (Idol & Cost 3 or more) ◆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, place one core from the void onto this Nexus.
Grandphosis: 5 [LV1][LV2] Flash - (Your Attack Step) (Send five cores from this Nexus to the Void) Refresh all "Idol" family Spirits you control, and during this turn, this Nexus is also treated as a Spirit with [LV1][LV2] 3000 BP, and can only be destroyed by Grandwalker Nexuses. This effect can only be used once per game.
Grand Skill: 2 [LV2] Flash - (Opposing Attack Step) (Send two cores from this Nexus to the Void) Refresh one "Stage Style" Spirit you control.