Well actually, Wiz-Raizen almost beat Koko several times in the second round. When he kept him SG locked, his HP would drop pretty low. At least for that first round.
Regarding the no time-limit, I don't think that ended up being much of a problem. All the matches went to the death and only ehm, one in particular was really long. With a very skilled runner. And had I put a time limit on it, who do you think would have had the most HP anyway? Probably the person with a high heal.
No green pots. Well, if you know silence is going to screw you over...that's about the time you should consider using an immunity / resistance card. If not that, get more vit. So it's not like anyone was left defenseless.
You did good though, Matt.