Flash - Advent: Astral Dragon & 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) During this turn, this Spirit is unaffected by opposing effects.
[LV2][LV3] Flash (When Attacks) You can summon one "Astral Dragon" Spirit card that has turned into one of this Spirit's pre-Advent cards, without paying the cost. When you've done so, refresh this Spirit.