[LV1][LV2][LV3] Seal - (When Summoned) You can send Soul Core from your Reserve to your Life.
[LV1][LV2][LV3] (When Summoned) Put one core from the Void to this Spirit. Also, put one core from the Void to a Green-only Grandwalker Nexus you control.
{During Seal} [LV1][LV2][LV3] (Your Attack Step) When your "Winged Beast" family Cost 5 or more Spirit's Attack reduces the opposing Life, send one opposing Life to the Reserve. This effect does not stack.