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: ("Astral Dragon" / "Astral Soul" / "Astral Deity" / "Galaxian" / "Worldswalker" & Cost 3 or higher) (Brave)" ◆When you summon/advent a target Spirit/Brave, 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, put one core from the void onto this Nexus.
Grand Skill: 2 [LV1][LV2] Flash - (Send two core from this nexus to the void) Destroy an opposing 4000 BP or less Spirit. Or, destroy an opposing Nexus.
Grand Field [LV2] (Your Attack Step) At the end of your Braved Spirit's battle, send an opposing life to the Reserve.