Level 1: 1 core, 10000 BP Level 2: 3 core, 15000 BP Level 3: 6 core , 20000 BP (Revival: 4 core, 21000 BP)
☼[ Burst: After Your Life is Decreased ] When your life is 3 or less, summon this spirit.
[LV2][LV3] (When Attacks) You can summon, from your Trash, one Spirit card with "Immortality", without paying the cost.
[When Braved][LV3] (When This Spirit Brave Attacks) Send one core from any opposing spirit to the void.
☼[ Burst: After Your Life Decreases] ☼[ Burst: After An Opposing Grand Skill Resolves] Send three cores from any opposing Spirits/Ultimates to the Trash. After that effect resolves, summon this card without paying the cost.
[LV2][LV3] (When Attacks) You can destroy an opposing exhausted Spirit/Ultimate. When you destroyed with this effect, if your Life is 3 or less, send a core from an opposing Spirit/Ultimate or the opposing Life to the Void.
King Arthur was a British leader/king active during the 5th-6th century, known mostly for his prominence in folklore, and historically as the king of the British defense against Anglo-Saxon invaders, though his existence is not clear.