yugioh gx duel academy fusion deck Polymerization (B) - Speed GX: Duel Box teach the class a lesson as Dr GX and Fusion Summoning :

Normal Spell Card (1) Add 1 Hallo the Great Spirit of Tricks or Ween the Great Spirit of Treats from your Deck or GY to your hand

From Bulbapedia, the community-driven Pokmon encyclopedia

An artifact for three mana, Dragon's Hoard is a flexible card that allows Dragon-Tribal decks to gain either of these benefits through the use of their Dragons

This card can be discarded at any time to negate any effect anywhere that either adds a card from the deck to the hand, special summon from the deck, or sends a card from the deck to the graveyard

"Great job planning that retreatyou saved Pikachu!" Protect Cards : Use TCG Protectors sleeves and binders to teach kids to value their collection