pokemon card mysterious fossil Armor | Diamond & Pearl—Mysterious Treasures The item available is listed in the Title Mysterious Fossil - Ultra Sun

So Great Wall

Academy Manufactor gives you a Clue and a Treasure token for every Food you make which, in this deck, is an absurd amount of additional value

You can tap him to create a 1/1 red Goblin token for every Goblin you already control

The card stands apart from other powerful win conditions which remain legal in the format

Ancestral Recall For the cost of just one blue mana, you can either draw three cards or force your opponent to draw three cards with Ancestral Recall

We think it would probably have been a rare instead of a common for its versatility and strength, and it would have likely seen play with enough cards supporting an archetype like Big Red or Red Deck Wins