Equip only to "White Magician Pikeru" or "Ebon Magician Curran". It gains 800 ATK. At the end of your Battle Phase, if the equipped monster destroyed a Level 5 or higher monster by battle this turn: You can Tribute the equipped monster; Special Summon from your hand or Deck, 1 "Princess Pikeru" if you Tributed "White Magician Pikeru", or 1 "Princess Curran" if you Tributed "Ebon Magician Curran".
Spell
Equip