Monster poisons mostly have to be added by users (although if you can compile a list of creatures with poisons I will see about adding them!).
The poison tracking is sub-par because ClockAdjuster doesnt support tracking rounds as 6 second intervals. I need to come up with a way of doing that; once I have, I'll add support for tracking poison effects per round.
It might not even be that hard, just hasnt come to the top of my list yet (right now I'm finishing up implementing bags of holding in Total Encumbrance).
EDIT: I built a prototype before bed tonight. Still a little way to go before it's worth posting, it is rolling twice every third round at the moment!

