Flash - Advent: Terra Dragon/Emperor Beast & 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] All your "Terra Dragon"/"Emperor Beast Spirits get +10000 BP.
[LV2][LV3] (When Attacks) At the end of battle, for each of this Spirit's pre-Advent cards, send one opposing Life to the Trash.