Morgan, the Enchantress of Avalon

Morgan is a level 3, dark-type spellcaster monster and member of the Noble Knight monster archetype. She is based on Morgan le Fey or Morgana, a powerful sorceress from Arthurian legend. Her card effect is: "When your opponent activates a card or effect, while you control a 'Noble Knight' monster and a 'Noble Arms' Equip Spell (Quick Effect): You can send this card from your hand to the GY; destroy 1 'Noble Arms' Equip Spell you control, and if you do, negate the activation. You can only use this effect of 'Morgan, the Enchantress of Avalon' once per turn."