Flash - Advent: Purple/White & Ultimate (Either Attack Step)
By sending your Soul Core(Soul Core) to the Trash, stack this from your hand onto your target spirit.
[LV1][LV2][LV3] (When Advents) Return 2 opposing Spirits to the top of the deck.
[LV2][LV3] (When Attacks/Blocks) At the end of battle, you can reveal 1 card from the top of your deck. You can summon 1 Spirit card from the "Ultimate" family among them, without paying the cost. Remaining cards are discarded.