Hunt

HUNT adds progress when a player kills matching non-player entities.

quests: # Root task configuration.
  levels: # Level entries.
    20: # Target level.
      requirements: # Requirement list.
        rules0: # Unique rule id.
          type: "HUNT" # Listen for mob/entity kills.
          entity: "SKELETON" # Entity type that should count.
          required: "3" # Number of matching kills required.
        description: # Requirement descriptions.
          0: "%status%<reset> <gray>Kill 3 skeletons</gray> <white>({currentProgress}/{maxProgress})</white>" # Description for rules0.

Use comma-separated entity names when multiple mobs should count.