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: (Yellow & Rookie/Champion/Ultimate/Mega)" ◆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.
Grand Skill: 2 [LV1][LV2] Flash - (Send two cores from this nexus to the Void) During this turn, give one Spirit you control +3000 BP. Then, while it has at least 10000 BP, it can't be blocked by opposing [LV2]/[LV3] Spirits.
Grand Field [LV2] Flash - (Either Attack Step) By putting two cores from this Nexus to a "Sakuyamon," return one opposing [LV1] Spirit to the bottom of the deck.