Flash - Advent: Imp/Winged Beast (Either Attack Step)
By sending your Soul Core(Soul Core) to the Trash, stack this from your hand onto your target Spirit.
[LV1][LV2] (When Summoned/Advents) Put two core from the Void to this Spirit.
[LV2] Flash (When Attacks/Blocks) By discarding one pre-Advent card beneath this Spirit, return one opposing exhausted Spirit/Ultimate to the bottom of the deck.