Level 1: 1 core, 12000 BP Level 2: 3 core, 15000 BP Level 3: 5 core, 20000 BP
Flash - Grand Advent: "Kuuga" & Cost 6 or more (Your Turn) By either sending your to the Trash, or putting a core from your Grandwalker Nexus to a Spirit you control, stack this from your hand onto your target Spirit.
[LV1][LV2][LV3] (When Attacks) Destroy an opposing non-"Supreme" family Spirit/Ultimate.
[During Advent][LV2][LV3] (When Attacks) Send an opposing Life to the Reserve. Also, during this turn, opposing effects can't end the Attack Step.