Crystal Prep's principal with crystals as reference. Her card's info says: JGMD-EN030: Bulky Boss DARK / FIM-Type Synchro / Level 10 / ATK 350 / DEF 4500 1 DARK FIM monster + 1+ non-Tuner FIM monsters Must be Synchro Summoned. DARK FIM monsters, except "Bulky Boss" cannot be destroyed by battle or effects, also they cannot be targeted by effects. Once per turn: You can send any number of cards from your hand to the Grave; inflict damage to your opponent equal to the number of cards sent this way x 300. (Super Rare)
