Muzan vs Sukuna In Minecraft. This was done with the Demon Slayer mod and the Jujutsu Kaisen mod.
Demon Slayer Mod: https://www.curseforge.com/minecraft/mc-mods/demonslayer
Jujutsu Kaisen Mod: https://www.curseforge.com/minecraft/mc-mods/sorceryfight
Map download: https://www.planetminecraft.com/project/new-mob-vs-mob-battle-arena-nether-basalt-for-minecraft-and-minecraft-forge-1-16-5-1-16-4-1-1-3older-versions-coming-soon/