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: (Worldswalker/Avatar & Cost 4 or higher) (Olym/Uru & Nexus) ◆When you Summon/Advent/Deploy a target Spirit/Nexus, 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.
[LV1][LV2] (When Deployed) Send every core from an opposing Grandwalker Nexus to the Void.
Grand Skill: 3 [LV1][LV2] Flash (Either Attack Step) - (Once per turn, send three cores from this nexus to the Void) Destroy an opposing Grandwalker Nexus in Grandphosis state.
Grand Field [LV2] (Either End Step) Discard random cards from the opposing Hand until it only has four cards.