{During Seal} Flash - Thunder Swift (Either Attack Step) This Spirit in your hand can be summoned as Cost 4.
[LV1][LV2] Seal (When Attacks/When Blocks) Send Soul Core from this spirit to your life.
{During Seal} [LV2] Flash - Thundering Soar (When Attacks) By paying one cost, refresh one Spirit in the family "God-King," and this Spirit cannot be blocked by Spirits/Ultimates with less cores than itself.
Rulings:
1. When you pay the cost for Thundering Soar, and this Spirit is lowered to Lv1, no Spirits can be refreshed. However, if this Spirit is raised to Lv2 during later flash-timing, then the unblockable effect can still activate.
2. When it's not {During Seal}, this Spirit card is not treated as having Thunder Swift.