u/National_Champion560

Things I follow while doing beginning Acts:

• I prioritize Companion Random Cards over reaction upgrade cards at the start, because Acts 1 & 2 can be done with decent or weak characters somehow.
• Choose easy enemies.
• On Act 3, pick a reaction upgrade. Look properly at your team that can beat the boss and focus on that specific reaction. Also, keep picking Character Random Cards so you can balance your good units. ( Sometimes its possible to beat ACT 3 without reaction upgrade )
• Once you see you can clear a specific Act too quickly, restart it, replace your good unit with a weak support, and see how it goes.
• Act 4 is all about maintaining the Monolith's HP; choose stationary enemies like Ruin Guards.(In Act 4 also u may could skip reaction upgrade card , as it does not have specific time requirement.)
• form Act 5 onwards you have to balance reaction and characters. choose easy enemies properly based on your available characters.
• Be prepred with reaction upgrade stacks when u reach Act 9 and Luna stages.
• Save Lunar characters for Luna stages and keep a healer in reserve. Those stages force you to show your strength in Time while constantly draining your team's HP.
• For ACT 10 whatever team reaction works best for dmg , upgrade it to 3 or 4 also maintain other reaction so u dont struggle.