Every 4 {Cus:Sap,S=day P=days SapTag=0}, the Daily Coupon yield of all Echoes on the field is increased by 1% (Relic Level). Upgrade: Current Relic Level is 1. The Relic will automatically level up for every 1 {Cus:Sap,S=Echo P=Echoes SapTag=N} removed.
