run him as leader with 3 or four other clones, and he will take much less damage
cody(L), rex, echo, fives, and then either phasma (for the guaranteed crits after VM) or CSP1 (for even more clone synergy, TM, and cody's crit % lead helps CSP1 too)
tbh, i hate that they made his clone synergy defense leader-dependent. that should have been split out into a unique
leader should have been the increased crit % by itself. if you had to add something then maybe increased crit % and... either increased crit dmg or "gains x on crit" (where x is tm, or offense up, or defense up, or potency, or evasion or whatever)
to put him in the darth maul category of slow and squishy was an interesting decision for a clone, and then to make the extra defense require him to be leader wasn't really in the interest of making him playable