Dragon's Blood (ドラゴンズ・ブラッド, Doragonzu Buraddo; Dragoon Brood in English Dub) is the forbidden technique that was recklessly used by Samuel Nakaoka the Second to using his own BEAST Cells' liquid to make the opponent gone berserk. However, it has a side-effect that opponent could die because the cells were break down.



When Vector hasn't still giving up the duel, Samuel Nakaoka calls him a fool; angrily transforms into BEAST Mode Ultimate Form and used this attack to make Vector berserk which is soon died because of the side-effect.


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