What are the worst COs you can get away with and still win vs. Kill Bots?
If you have specific parameters in mind, then do mention them! Otherwise, since we had Double Trouble (VL with Kill Bots + Propogators) most recently, that could be one baseline we could all use.
Zerg COs sound like they're all barred (esp. Zagara and Stukov), although Dehaka may be an exception (who in many ways doesn't act like a Zerg CO anyways). I'm guessing Raynor non-P1 and Mengsk would be the best bets?