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: (Green/Blue & Rookie/Champion/Ultimate, Mega)" ◆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.
[LV1][LV2] This Nexus' symbol is also treated as Blue.
Grand Skill: 4 [LV1][LV2] Flash -(Either Attack Step) - (Send four cores from this Nexus to the Void) By exhausting an opposing Spirit, put a core from the Void to a Spirit you control/the Reserve.
Grand Field [LV2] (Your Attack Step) When your Green "Ultimate"/"Mega" family Spirits are attacking, the opponent can't activate Burst effects.