[LV1][LV2] (Your Main Step) When your White-only Grandwalker Nexus woud send cards to the Trash with Core Charge, by not sending any cards, put two core from the Void to that Grandwalker Nexus. This effect does not stack.
[LV2] (Start of Your Attack Step) During this turn, the Grand Field of one "The Grandwalker Artemis" can target two Spirits.