Flash - Advent: Cost 5 or more (Either Attack Step)
By sending your Soul Core to the Trash, stack this from your hand onto your target spirit.
[LV1][LV2][LV3] (When Advents) Return one of this Spirit's Yellow "Ultimate" family pre-Advent cards to your Hand. When you've done so, every opposing Spirit gets -10000 BP. Spirits whose BP were brought to 0 by the effect are destroyed.
[LV2][LV3] (When Attacks) This Spirit can't be blocked by opposing Spirits/Ultimates with 10000 BP or less.