FiM Rarity's iconic light blue diamonds reside in a sea of colors. The card's info says: RB11-EN018: Diamonds of Harmony Equip Spell Equip only to "My Little Pony Glamorous Rarity". It gains 800 ATK. Battle Damage you take from battles involving "My Little Pony" monsters equipped with a "Harmony" card(s) you control becomes 0. Rainbow Rare