3 Cool Weapons I made for a Datapack vs Plugins battle.
I won.

These swords are not obtainable in survival, and there may still be some kinks.

How to use:


Ice Cannon:
use "/function icecannon:give" to give yourself the weapon.
Simply hold down right click for a long time then it'll get better.
It shoots ice instead of arrows, but you still need an arrow for this to work since it's still a bow.


Firewall:
use "/function firewall:give" to obtain.
To enable, hold the shield in your offhand, block, and look down.

Do the same to disable.
It can block projectiles (mostly arrows), and will either launch them backwards, or burn up. It also causes nearby mobs to burn up.


Chunkblade:
use "/function chunkblade:give" to obtain.
you can right click to access the different abilities.
Left clicking will activate whatever ability, but you can only use it a certain amount of times before you are on cooldown.
On servers this one could be buggy since it teleports an interaction onto the player's head to function.


That's about it!
PLEASE KEEP IN MIND: you can only use 1.20.4 for this to work.