The Stag Beetle Undead (スタッグビートルアンデッド, Sutaggu Bītoru Andeddo)[1] is the unseen Category Ace Undead from the Suit of Diamonds. When sealed, the Stag Beetle Undead allows the transformation into Kamen Rider Garren. Yasushi Nirasawa answers that Stag Beetle Undead is black color and has same antlers compared with Giraffa Undead.[2]
