MUI Rose' Goku Black: "I have returned, stronger than you can ever dreamed of mortals, for I've unlocked my ultimate form. Mastered Ultra Instinct Rose'. Now bow down to your one true god of the universe!!"
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Vs
MUI Goku
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Goku: "H-how!? How are you still alive!? We got rid of you in Trunks Timeline! And why do you have Mastered Ultra Instinct too!?"