Flash - Advent: Purple & 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) Send 3 cores from an opposing Spirit/Ultimate to the trash.
[LV2][LV3] (Your Attack Step) When your Purple Spirits attack, your opponent must send 1 cores from 1 of their Spirits to the trash, otherwise they cannot block.