>>58614800People bring up Exodia, but Yugi literally only used it for a single episode, and it was taken away from him, because the writers realized how busted him keeping that for the whole series would be
Holactie is more likely, but its such a specific setup to get that I doubt it'll come into play, if it does, maybe as the final play to win the match, but Yugi has so many other ways of dealing with Ash, that it really isn't needed
Yugi is likely going to be having access to his magic and trap cards in this battle, meaning he'll have a lot of versatility in how he can control the flow of battle compared to Ash, since the Pokemon anime doesn't even use items very often, so he's a lot more straight forward, even ignoring that Ash is known to battle in a very unorthodox way compared to normal Trainers