PsychoIncarnate said that if I used shock coma, shock coma, high voltage, and then retrograde I could kill most anything. He said to have high voltage and shock coma on max, though I didn't see any way that could help the combo, I did so.
But it doesn't work. I tred using shock coma first too. I can get half damage on one turn, but then it just heals up the following turn. The effects of retrograde expiring before the healing kicks in.