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: (Kamen) ◆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 three cards from your decktop to the trash. For each target card among them, place one core from the void onto this Nexus.
[LV1][LV2] After your Change resolves, put one core from the Void to this Nexus.
Grand Skill: 5 [LV1][LV2] (Your Main Step) (Once per turn, send five cores from this nexus to the Void) Reveal 4 cards from your decktop. Either summon any amount of "Gamer"-named Spirit cards among them without paying the cost, or add them to your hand. Remaining cards are discarded. These summons do not trigger Core Charge.
Grand Field - [LV2] Give all your Spirits one additional God Symbol.