{ "description": { "translate": "enchantment.minecraft.knockback" }, "supported_items": "#minecraft:enchantable/melee_weapon", "weight": 5, "max_level": 2, "min_cost": { "base": 5, "per_level_above_first": 20 }, "max_cost": { "base": 55, "per_level_above_first": 20 }, "anvil_cost": 2, "slots": [ "mainhand" ], "effects": { "minecraft:knockback": [ { "effect": { "value": { "base": 1.0, "per_level_above_first": 1.0, "type": "minecraft:linear" }, "type": "minecraft:add" } } ] } }