To put it generally, SAM "main" damage comes from 2 Source, Iaijutsu (building Sen/ GCD skills) and from Kenki (off GCD skills). on the start, you will learn on how to build Sen, as there are 3 combos. each combos has buff/debuff that you want to keep at all times. Then later the Kenki gauge unlock with the spender skills. The complexity of SAM is on how to build Sen efficiently while building/spending Kenki, as you cant neglect one or the other to maximise DPS
