Hmm Sun Jin might be worth buffing to T6I do think Soldier X should be distinctly part of it even without it being likely part of the synergy. He's old and going for a melee build most likely, getting him back closer to his prime physically seems distinctly relevant for making him do his best here.
With 1 Sugar and Fastpass
So we can go with
Mr Hunch
Daggermaw
Soldier x
Adamant
Sewer Rat
Gives X2 Senses, Strenght, Regeneration and Transformation along with the Synergy
Likely Regen means better at Melee and Soldier x should give him a body in his prome again.
need to see how much fastpass cost but we might be able to afford it.