Tribute: A cost of 6 or more -> The Void (To Summon)
As an additional cost to summon this spirit card, you must select a spirit you control that has the specified cost and move all cores from that spirit to the specified area.
[LV1][LV2][LV3] (When Summoned) If the Spirit you sacrificed to Tribute Summon this Spirit has "Siegwurm" in its name, add Cores from the Void to your Life until you have 5 Life Cores.
[LV2][LV3] (When Attacks) Destroy any number of opposing Spirits up to a grand total value of 10000BP.
[LV3] Clash (When Attacks) Your opponent must block if possible.