The equipped monster gains 1000 ATK. Once per turn, during your Main Phase: You can Fusion Summon 1 Spellcaster Fusion Monster from your Extra Deck, using monsters from your hand, field, and/or "Prince of Fairies" your opponent controls as material. If this card is in your GY: You can equip this card to 1 "Fairy Tail" monster on the field, then immediately after this effect resolves, you can Normal Summon 1 Spellcaster monster with 1850 ATK. You can only use this effect of "Tails of the Fairy Tails" once per turn.