[New!] New weapon knockback.

https://www.youtube.com/watch?v=9jRueHixYBY

use the command here and if you want to make a custom item like that hammer, in the "triggers" select "when item is crafted/smelted" make it run the command on the item, giving it the enchantment, that's the easiest way of going about it  

go to https://mcstacker.net/ , its a command generator. generate a give command of an item and just replace it with the hammer id

no the command in the video I sent will allow you to use knockback far stronger then the normal amount 

you could try messing with /attribute @s minecraft:generic.attack_knockback base set #

@pottassination how do i exactly do that? im making a mod with custom weapons and i want to make a sword with knockback bonus without enchants (i dont want  the sword to display a glint or an enchant)

You can put this procedure to Hammer's trigger section.

kinda neat how there's just ol' asriel vibin' 'round on this website.

@XenraO, that works miles better

Pictures deleted. If I remember correctly, the code below is accurate to the picture(s) and can be done with the block editor:

entity.setDeltaMovement(new Vec3((entity.getDeltaMovement().x() - Math.sin(sourceentity.getYRot() * (Math.PI / 180))), (entity.getDeltaMovement().y() + 0.5), (entity.getDeltaMovement().z() + Math.cos(sourceentity.getYRot() * (Math.PI / 180)))));