How about making the prizes more like in the I hate this deck events back in the day? Say, first one to 75 points or higher gets a Manon Cr, all the remaining people with over or equal to 75 points get Shawoman Cr, 50 to 74 points get Cassio Cr, 30 to 49 get Yayoi and so on? Or impose a minimum fight limit, if that's easier.
And I have a strong suspicion that the 0 pill rule won't be in the account during the next coliseum. Can't say for sure, but stay put until we get scoring rules and prizes.