Serenity

List of Upgrades for Serenity-
 * Lv 5 : Cannon Upgrade (+100% this Ship Damage)
 * Lv 10 : Cannon Upgrade 2 (+60% this Ship Damage)
 * Lv 25 :  Alpha Superiority (+25% All Alpha Damage)
 * Lv 50 :  Gold Optimization (+20% Gold Drop)
 * Lv 100 : Alpha Precision (+15% Alpha Critical Damage)
 * Lv 200 : Edge of Alpha (+2% Alpha Critical Rate)
 * Lv 400 : Alpha Superiority 2 (+35% All Alpha Damage)
 * Lv 800 : Alpha Superiority 3 (+50% All Alpha Damage)