First the craft of the sword is:

Or if you want to make the challenge you need to write the commnad /give @s supersword or /function super-sword

To get the elemental stones you need to defeat the elemental guardians in the next dungeons

Infernal dungeon:

Infernal guardian

Spawn: Nether biomes

Desert dungeon:

Desert guardian

Spawn: Deserts biomes

Power dungeon:

Power guardian

Spawn: Jungles biomes

Ocean dungeon:

Ocean guardian

Spawn: Oceans

End dungeon:

End guardian

Spawns: All the end dimension

All the bosses has this special swords with vanilla effects

Infernal guardian sword: Fire resistance

Desert guardian sword: Resistance

Power guardian sword: Strength

Ocean guardian sword: Conduit power

End guardian sword: Slow falling

Elemental summoners

This elemental summoners appear in the dungeons and you need to break it to summon the boss

Crafts to the swords

If the sword has:

Fire stone: Makes a square of fire (5×5)

Desert stone: Appears evocation fangs to hit the enemies

Power stone: Gives strength effect 10 seconds

Ocean stone: Gives to nearest mob slowness and mining fatigue

End stone: Gives to nearest mob levitation

You can combine the different stones in the sword and perform joint skills

And now this is the super sword

I hope you enjoy the addon and merry xmas