Early Rounds: Assist other 2-star pieces with the Attack Speed boost brought by Glacier (2) Synergy effect and the control effects provided by the Defector and Desperate Doctor to get a winning streak. If you still have Gold left after getting all the pieces, Buy Exp to reach Lv.6 as soon as possible.
Mid-rounds: Upon reaching Lv.6, replace the non-Glacier and non-Knight pieces on board with 2-star Knight pieces. Meanwhile stop Buying Exp or refreshing Store until you have more than 30 Gold at hand. Once you hold more than 30 Gold, you can spend the exceeding part to reach Lv.8 (try to always keep 30 Gold at hand to earn as much Interest as possible). lf you get Berserker, deploy ¡t on board to activate Glacier (4) and Knight (4) Synergy effects.
Later Rounds: After Lv.8 has been reached, It is recommended to keep more than 30 Gold at hand and meanwhile refreshing the Store for Berserker or other available pieces. During your search, you can also purchase pieces of other Races to activate new Synergy, such as activate Egersis. (2) Synergy with Soul Reaper and Evil Knight weaken enemies'Armor.