Early Rounds: Try to deploy 2-star pieces that cost low but easy to activate Race or Class Synergy effects such as Soul Breaker, Skull Hunter, Redaxe Chief, Swordman etc... to earn a winning streak. lf you fail in both Round 4 and 5, try to reduce your on board pieces by 1 or 2 or even fewer to steal a lose streak that reduces your HP loss. lf you have successfully obtained a winning streak or a lose streak, you may try to Buy Exp before Round 9 once or twice to upgrade your level.
Mid-rounds: Upon reaching Lv.6, you may save some Gold based on your current HP, If your HP ¡s still at a comparatively high stage, you may keep 50 Gold at hand, otherwise, it will be fine to save 20 or 30 Gold. During this period, Buy Exp with your exceeding Gold to reach Lv.8. Meanwhile, replace the pieces of lower stars with Warrior or Hunter pieces, and try to activate Warrior (3) Synergy effect or Hunter (3) Synergy effect as soon as possible.
Later Rounds: Upon reaching Lv.8, It is recommended to refresh your Store for useful pieces with the Interest or Round rewards to rank up your pieces on board. During this period, you may adjust your Formation according the enemy pieces. For example,if they are trying to activate Mage (3) or Mage (6) Synergy effect, you may replace your Egersis Ranger with the Tsunami Stalker and counter their Magic damage with the Marine (2) Synergy effect. lf you wins a winning streak, however, you may level up to unlock 9 slots to deploy more powerful pieces on board, gain more alternative Races or Class Synergy effects and increase the refresh rate for powerful pieces.