Armor Weight

 Armor Weight does not add a weapon or an object but a new feature. Armor now has a weight! Unfortunately (or happily) it does not decrease your speed but affects gravity! The more power your armor is (armor points) then it will affect the speed at which you jump

I'm French and this mod was done with Mcreator (Sorry if I make mistakes in English 😅) 

The more armor points you have, the lower you’ll jump (in vanilla, the netherite armor is the heaviest)

This mod adds a new mechanism, you can now crash on the enemies to do damage to them

To amplify this effect, you can enchant your boots with the enchantment "Smash" (can reach level 3)

Afterwards, if you are tired of jumping lower than normal, you can enchant one of your armor pieces with the enchantment "Slight" to return to the Vanilla gameplay

You can put Armor Weight in your modpack !