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: ("Cost 3 or higher [Core Charge via Summon/Advent only once per turn])" ◆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 - (Either Attack Step) (Once per turn, send two cores from this nexus to the void) By adding one card from your hand as a pre-Advent card to one of your Spirits that has Advent, refresh that Spirit.
Grand Field [LV2] When either player draws by effect, they can only draw one card.