Three checks before replacing a unit
Check the mode. A long-run specialist does not automatically solve an early Story wave. Do not turn one all-mode list into a claim that every S-tier option is best for every map.
Check the interaction. The source notes Commander’s physical-damage buff and Super Bro’s magic damage. Putting them together does not establish that Super Bro receives the buff. Build around verified interactions rather than matching tier letters.
Check your investment. Compare the unit you can actually field now, not a theoretical maxed version you cannot afford. Keep a reliable clear team while testing changes one slot at a time.
Turn a shortlist into a loadout