onEvent('block.loot_tables', event => { 
  event.build('create:copper_ore', table => {
     table.pool(pool => {
       pool.survivesExplosion()
       pool.addEntry({
         "type": "minecraft:alternatives",
          "children": [
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:match_tool",
                  "predicate": {
                    "enchantments": [
                      {
                        "enchantment": "minecraft:silk_touch",
                        "levels": {
                          "min": 1
                        }
                      }
                    ]
                  }
                }
              ],
              "name": "create:copper_ore"
            },
            {
              "type": "minecraft:item",
              "functions": [
                {
                  "function": "minecraft:apply_bonus",
                "enchantment": "minecraft:fortune",
                "formula": "minecraft:binomial_with_bonus_count",
                "parameters": {
                  "extra": 0,
                  "probability": 0.25
                  }
                },
                {
                  "function": "minecraft:explosion_decay"
                }
              ],
              "name": "cavesandcliffs:raw_copper"
            }
          ]
       })
     })
 })
})
