Yu-Gi-Oh! Cards Order Of The Spellcasters Structure Deck | 3 Super Rares | 2 Ultra RaresThe magical Masters of structure Deck: order of the spellcasters have transcended the need for physical forms and gained the ability to become spells themselves! As pendulum monsters, they can be played as either monsters or spell cards, and have different abilities depending on which you choose. With most pendulum monsters you have to choose between playing It as a monster or a pendulum spell, and once you decide, you can't change your mind. With the