Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common When an opponent's monster declares an Attack: Your opponent Chooses 1 random card from your hand, then if it is a monster that can be special sumoned, special sumon it. Otherwise, send it to the...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common All "Crystal Beast" Monsters on the Field and in the Gy Become Dark. If an "Ultimate Crystal" Monster Attacks, Negate the Effects of the Attack Target Duration That Battle Phase. Duration Damage Calculation, If A...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common You must have this many "crystal beast" cards in your game & trap card zone to activate and resolve thesis effects: // * 1+: this card cannot be destroyed by card effects. // * 2+:...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Once per duel, you can discard 1 card to fusion Summon 1 "Ancient Gear" fusion monster from your extra deck, using monsters from your field as fusion material. If 1 of those materials is an...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 2000 Defense: 200 Product Details Cannot Be Special Summoned. If this card attacks, your opponent cannot activate any spell/trap cards until the end of the damage step. Negate the Effects of an Opponent's Monster...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common All "Ancient Gear" Monsters Gain 300 ATK. Each Time A Monster is normal sumoned/set, place 1 counter on this card. If you Tribute Summon An "Ancient Gear" Monster Face-Up, You Can Tribute This Card Instead,...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 1500 Defense: 1500 Negate any trap effects that target this card, and if you do, destroy that trap card. If this card attacks, your opponent cannot activate any spell/trap cards until the end of...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 500 Defense: 2000 If this card is normal or special sumoned: you can declare 1 card type (monster, spell, or trap); This turn, if your monster attacks, your opponent cannot activate spell/trap cards or...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 3000 Defense: 3000 Cannot Be Special Summoned. If this card attacks, your opponent cannot activate any spell/trap cards until the end of the damage step. If this card attacks a defense position monster, Inflict...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Secret Attack: 3000 Defense: 3000 Cannot Be Special Summoned. If this card attacks, your opponent cannot activate any spell/trap cards until the end of the damage step. If this card attacks a defense position monster, Inflict...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 1800 Defense: 500 This card is treated as a normal monster while face-up on the field or in the graveyard. While this card is a normal monster on the field, you can normal summon...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 1300 Defense: 1300 If this card attacks, your opponent cannot activate any spell/trap cards until the end of the damage step.

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 100 Defense: 800 While An Ancient Gear is face-up on your side of the field, you can special Summon this card from your hand in Attack Position.

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Common Attack: 400 Defense: 800 If this card is special sumoned: target 1 face-up card on the field that you can place a spell counter on; Place 1 game counter on that target. If this card...

Set: Speed ​​Duel GX: Duel Academy Box Rarity: Secret Attack: 400 Defense: 800 If this card is special sumoned: target 1 face-up card on the field that you can place a spell counter on; Place 1 game counter on that target. If this card...