Max ps, cot, boi, fade. Put a few points into claw Maseru for attack rating to help with getting charges.
Ps2, cot2, boi2, cobra3 should be all u need. Tiger only if lifht+ cold immune.
Cobra can bug out if the amount leeched is too high - it essentially rolls back to zero so don’t put extra points into cobra and don’t use a lot of + martial arts skills (no 3ma gloves, circ and no need full inv of gcs)