Main team — Season 3 F2P
Front row: Murphy + Scarlett (if she is 5★ and promoted to UR in S3). Back row: Kimberly + Mason + Marshall. If Scarlett has not been promoted yet, use your best already-developed defender. Williams and Stetmann are later-season options depending on your server’s release schedule.
Why it works: Two defenders protect Kimberly and Mason; Marshall boosts the team. Five Tank heroes benefit from the single-type squad bonus. In PvE, Mason also boosts back-row Tank heroes’ damage against monsters; this part of his kit does not apply in PvP.
Investment order: 1) Kimberly for damage, 2) Murphy for survival, 3) Marshall for his team buff, 4) Scarlett if her UR promotion and investment are ready, 5) Mason for PvE or depending on your roster. In PvP, replace Mason with a suitable DPS only if you have one that is properly developed.
Skills: Kimberly Tactical → Auto → Passive ; Murphy Tactical → Passive → Auto ; Scarlett Tactical → Passive → Auto (general defensive priority; adjust because her anti-monster PvE Tactical skill is situational); Mason Tactical/Passive depending on the PvE goal; Marshall Tactical → Passive → Auto. Starting point based on community guides; confirm in-game star thresholds.