Burning Superdeath Sword

Vsauce Joey meme sword, made with mcrapper. has a somewhat customized compatibility with bettercombat with custom swing sounds

1 sword weapon in the video game "Minecraft" with a nether ingredient based recipe and a hilt item for the recipe, 

1 hilt item to craft the sword with a nether based recipe

i guess if you wanted it in a modpack you could remove the recipe for the hilt and make it drop from an enemy using kubeJS or some other recipe and loot table modification mod

the sword is stronger than netherite, but not an instant kill sword.