SKELETON:
      - trigger: MOBSPAWN
        spawnedby: SPAWNER
        drop: NOTHING
        chance: 25%
        flags: UNIQUE
      - trigger: MOBSPAWN
        spawnedby: SPAWNER
        drop: {SKELETON@15h, SKELETON@25h}
      - tool: DAMAGE_DROWNING
        spawnedby: [BUILD_IRONGOLEM, BUILD_SNOWMAN, BUILD_WITHER, CHUNK_GEN, CUSTOM, DEFAULT, EGG, JOCKEY, LIGHTNING, NATURAL, REINFORCEMENTS, SLIME_SPLIT, SPAWNER, SPAWNER_EGG, VILLAGE_DEFENSE, VILLAGE_INVASION]
        drop: [STICK, XP/0]
        flags: UNIQUE
    SKELETON@15h:
      - tool: DAMAGE_DROWNING
        spawnedby: [BUILD_IRONGOLEM, BUILD_SNOWMAN, BUILD_WITHER, CHUNK_GEN, CUSTOM, DEFAULT, EGG, JOCKEY, LIGHTNING, NATURAL, REINFORCEMENTS, SLIME_SPLIT, SPAWNER, SPAWNER_EGG, VILLAGE_DEFENSE, VILLAGE_INVASION]
        drop: [STICK, XP/0]
        flags: UNIQUE
    SKELETON@25h:
      - tool: DAMAGE_DROWNING
        spawnedby: [BUILD_IRONGOLEM, BUILD_SNOWMAN, BUILD_WITHER, CHUNK_GEN, CUSTOM, DEFAULT, EGG, JOCKEY, LIGHTNING, NATURAL, REINFORCEMENTS, SLIME_SPLIT, SPAWNER, SPAWNER_EGG, VILLAGE_DEFENSE, VILLAGE_INVASION]
        drop: [STICK, XP/0]
        flags: UNIQUE