Suggested by iKnowledge Looks like it’s time for Yami to take out his dueling cards once more. Jadis may have been known as the legendary White Witch, but I fear that she doesn’t have enough magical power to defeat Yami. Yami Yugi has a whole army of powerful monsters at his disposal with which he can crush her. Jadis isn’t fast enough to dodge Yugi’s attacks nor is she durable enough to take them head on. Without a doubt she is doomed in this scuffle. Yami Yugi wins.
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I still think Jadis has a possibility of winning. A very powerful spell she used, The Deplorable Word, killed her home world, Charn. I know that in our world, her magic was gone, but she still has enough super strength to knock over a metal lamppost. Her status as a half-giant and daughter of Lilith must count in her favor as well, and even in Yugioh!’s world, she could probably still have enough power to make a win.
Her strength is good and she’ll certainly keep her spells, but even so she would have to get past an army of monsters at Yami’s beck and call. He also has spells like Mirror Force which will reflect her spell’s power. It’s just a whole lot of fighters that she would need to get past and I don’t think she has the speed or durability to pull such a thing off.