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: ("Winged Beast"/"Worldswalker"/"Avatar" & Cost 3 or higher) (Winged Beast & Ultimate)" ◆When you Summon/Advent a target Spirit/Ultimate, 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, place one core from the void onto this Nexus.
[LV1][LV2] This Nexus' symbol is also treated as Green/Ultimate.
Grand Skill: 4 [LV1][LV2] Flash (Either Attack Step) - (Send four core from this nexus to the void) Reveal three cards from your decktop. You can pay one cost to summon one "Winged Beast" family card among them. Remaining cards are returned to your deckbottom in any order. This effect does not trigger Core Charge.