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: ("Grand Siesta", Diva & Cost 5 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, 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 core from this nexus to the void) Pay one cost to summon a Cost 5 or less "Grand Siesta" Spirit from your Hand. This effect does not trigger Core Charge.
Grand Field [LV2] Your "Grand Style" family Spirits can't be blocked, and when they leave the field due to opposing effects, they return to the Hand.