Dragon (Research)

Monster Mastery I

Dragon Attack / Armor Penetration

Monster Mastery II Dragon Attack II / Troop March Speed / Critical Attack Monster Mastery III Armor Penetration II / Troop Healing Speed / Critical Attack II Monster Mastery IV Combo Attack / March Queue / Critical Attack III Monster Mastery V

Troop Attack with Dragon / Troop Defense with Dragon / Troop Life with Dragon Dragon Energy Limit / Troop Training Speed / Dragon Energy Cost Monster Mastery VI Troop Attack with Dragon II / Troop Defense with Dragon II / Troop Life with Dragon II Monster Mastery VII Armor Penetration III / Troop Healing Speed II / Dragon Energy Limit II Monster Mastery VIII Dragon Attack III / Troop Training Speed II / Dragon Energy Limit III Monster Mastery IX