GalaxyDatapack/galaxy/data/minecraft/loot_table/entities/ender_dragon.json

{
  "type": "minecraft:entity",
  "pools": [
        {
      "bonus_rolls": 0.0,
      "conditions": [
        {
          "condition": "minecraft:killed_by_player"
        },
        {
          "condition": "minecraft:random_chance_with_enchanted_bonus",
          "enchanted_chance": {
            "type": "minecraft:linear",
            "base": 0.035,
            "per_level_above_first": 0.001
          },
          "enchantment": "minecraft:looting",
          "unenchanted_chance": 0.0025
        }
      ],
      "entries": [
        {
          "type": "minecraft:item",
          "name": "minecraft:dragon_egg"
        }
      ],
      "rolls": 1.0
    }
  ]
}