(Lv. 1-2): When a non-Tribute-Summon Spirit with a Core Cost of 3 or 4 attacks, neither player loses a life, regardless of the situation. (Lv. 2): IMMUNITY (Amethyst/Sapphire)
This Spirit is invincible against the effects of all opposing Spirits, Nexus, and Spell Cards of the Gem Colors stated above.