Dragon Slayer is an Invention perk that increases damage by 7% against dragons. It can be created in weapon and armour gizmos. Crackling is an Invention perk that periodically zaps the target for 50% ability damage per rank in PvM, or 10% per rank in PvP. Other damage modifiers are ignored, including Berserk, Death's Swiftness, and Sunshine. It can be created in weapon and armour gizmos. It does not have any effect on Anagami or Arhat and it works throughout the Dragonkin Laboratory including its bosses.