if you can, make it so the better end tools and armour works with this. maybe since there's 2 types(better than netherite), you can only do it with one, and if you decide to make it so it works for both sets maybe the scales do different things for each set? for crystallite maybe it just like most mods, raises protection and toughness (and durability) but for the Aternium you get, say well for one, like the netherite, you can combine the ARMOURED ELYTRA, not a normal or crystallite one, with a Aternium chestplate, but you cant combine the crystallite chestplate with the elytra? and then the Aternium also gains say, a single, not too overpowered effect, say 1 more heart? i think what ive said is a bit too op, but its up to you if you decide to add this.