You may only cast this card if three or more cards have been discarded this turn, and you control a Size 3 <Asgard> monster. [Cast Cost] [Pay 3 gauge] [Set] Choose three cards on your opponent's field. While this card is on the field, those cards cannot attack, and their effects are nullified. This card's effects cannot be nullified. You can only set one "Great Spell, Trial of Binding" on your field.