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 higher) ◆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, you can 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.
Grand Field [LV1][LV2] (Your Main Step) When you summon an "Idol" & "School Style" family Spirit, if your Hand is 5 or less, draw a card. This effect does not stack.
Grand Skill: 2 [LV1][LV2] (Your Main Step) - (Send two core from this Nexus to the Void) During this turn, treat one "Idol" family Spirit you control as being one level higher.