he works in zader squad for take takedown. before I had jyn, used him in a zader squad to solo rancor raid (zader, EP, sid, TFP, bistan) very well, but coudl not auto it ... w/ jyn, I can hit auto and go someplace else and it is fine
in tank raid, he needs to be paired w/ zader w/ a tank and a healer (imo) ... given I use a rebel team w/ chaze, then chirpa w/ rg/sthan/sun fac, then a jedi team for p1 ... that leaves me with only my garbage tanks so I usually can not use him to full effectivess, but still can sometimes squeeze a 300k run on heroic p2/p3/p4 w/ him