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: ("Reptile Beast" / "Terra Dragon" / "Winged Dragon" / "Ancient Dragon" / "Astral Dragon") (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, put one core from the void onto this Nexus.
Grand Skill: 2 [LV1][LV2] Flash (Your Attack Step) - (Send two core from this Nexus to the Void) During this turn, one "Reptile Beast" / "Terra Dragon" / "Winged Dragon" / "Ancient Dragon" / "Astral Dragon" family Spirit you control gains the following effect: (When Attacks) Once per turn, when this Spirit is blocked, refresh it.
Grand Field [LV2] (Your Attack Step) All your Red Spirits gain +5000 BP. Also, opposing Spirits/Ultimates must block if possible.