I was thinking of a Yhwach matchup (for when he becomes 2-C), and there's a character who can kill all past, present, and future versions of the target, as well as all versions of them across every parallel or divergent world simultaneously. I wondered if that could kill Yhwach, but then I remembered this
panel. Yhwach rewrites a future in which he has already died to resurrect himself. Does that mean he could bypass this? And if the past aspect is an issue, would Soul King Yhwach with Aca 4 be able to handle it?