Revised and 100% complete listing for maximum damage! Combos labeled Pro are difficult so I provided the next closest in terms of damage!
Setsuka Combos NH:
SC:BD Damage
214~3a:B, 33B = 49-Damage
33B, 214~3a:B = 52-Damage
33B, bA, 33B = 62-Damage (33B is only guaranteed when the combo connects at far range otherwise the combo is 52-Damage)
3B, 214~3a:B = 54-Damage
Fc 3A+B, 214~B, A+K-B, 214~3a:B = 71-Damage
Bt B+K:B, A+K-B, 214~3a:B = 73-Damage
1B:B, 1B:B, 214~3a:B, 33B = 81-Damage
1B:B, 214~3B:B, 214~3a:B, 33B = 82-Damage
1B:B, 1B:B, 214~3B:B, 214~3a:B, 33B = 92-Damage
B+K, 61B, 44B+K = 82-Damage
11B, a

B, 214~3a:B = 83-Damage
11B, 2A+B, 236, A+K-B, 214~3a:B = 83-Damage
ag:B, 236, A+K-B, 214~3a:B = 88-Damage
ag:B, ag:B, 214~3a:B = 100-Damage (Pro)
Setsuka Combos CH:
SC:BD Damage
3B, 214~3a:B = 58-Damage
3B, bA, 33B = 59-Damage ((33B is only guaranteed when the combo connects at far range otherwise the combo is 58-Damage)
6K, A+K-B, 214~3a:B = 58-Damage
Ws B, 214~B, A+K-B, 214~3a:B = 65-Damage
11A, 236, A+K-B, 214~3a:B = 70-Damage
Fc 3B:B, 214~3a:B, 33B = 73-Damage
33B, 214~3a:B, 33B = 76-Damage (No Umbrella JF results in 70-Damage)
33B, 6K, A+K-B, 214~3a:B = 76-Damage
33B, 214~3B:B, 214~3a:B, 33B = 89-Damage (Pro)
22A, B+K:B, A+K-B, 214~3a:B = 88-Damage
4A, B+K~61B~44B+K = 83-Damage
4A, 33B, 214~3a:B, 33B = 87-Damage (No Umbrella JF results in 79-Damage)
4A, 33B, 214~3B:B, 214~3a:B, 33B = 100-Damage (Pro)
Setsuka Wall Combos:
SC:BD Damage
B+K, 61B, 33A+B, B+K, 61B, 44B+K = 144-Damage
Setsuka A+B Combos:
SC:BD Damage
Level 1-3: 30-Damage [Level 1-3 JI: 79-Damage (214~3a:B, 33B)]
Level 4-5: 30-Damage
Level 6-7: 86-Damage (B+K~61B~44B+K)
Level 8-9: 65-Damage
Level 10: 82-Damage
Setsuka Throw Combos:
SC:BD Damage
A+G: 214~3a:B = 66-Damage
214B+G: 214~3a:B, 33B = 83-Damage
Notes:
1. None of her combos have to be JF to connect anymore! Missing out on the JF Umbrella will cost u about 3-4 less damage.
2. 2A+B, 236, A+K-B, 214-3a:B = 63-Damage (This combo might be guaranteed and if it is the most absolute perfect timing for it is required in terms of executing the 236 into A+K-B and may be range specific in regards to how far the 2A+B connects).