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A playing card; in some countries, the suit is coins.

— Description, Sonic and the Black Knight[1]

The Ace of Diamonds (ダイヤのエース Daiya no ēsu?) is a collectible item that appears in Sonic and the Black Knight.


The Ace of Diamonds' appearance is similar to that of the traditional playing card of the same name. Accordingly, it is a playing card; in some countries, the suit is coins.


In gameplay, the player can collect the Ace of Diamonds during different Missions in certain areas. For then to obtain it, the player must use the ID points earned from completing the Mission where the Ace of Diamonds was picked up to identify it on the identification screen.


No. 119
ID Point Price 6
Rarity Level ★★★★★☆☆☆☆☆
Item Type Toy
Location Great Megalith


  1. Official in-game description of Ace of Diamonds in the Treasury, item 119/247.

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