Flash - Advent: Cost 6 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/Attacks) You can add a "Build"-named card from your Hand/Trash to this Spirit as a pre-Advent card. When you've done so, this Spirit refreshes.
[LV2][LV3] Flash - (Either Attack Step) By returning one of this Spirit's pre-Advent cards that has Change to the bottom of the deck, activate one of its [Change] effects without paying the cost. However, that card cannot leave your deck.