Poison, missiles, 1.10

[LavCat]

Correct Hunky.

I have read the Tao and other sources: the more I read the more I get confused. If it is correct that the "rates will be added together", the "duration will be averaged," then poison seems fairly simple.

It sounds too good to be true though? Let me give an example to see if I understand correctly:

My paladin has two charms that are his only sources of poison damage. One is Toxic, one is Pestilent. Toxic rate is 100/5sec = 20/sec. Pestilent rate is 175/6sec = 29.17/sec. Total rate is 49.17 per second over a duration of 5.5 seconds, for a total damage of 270.41.

A corollary of this is that adding additional poison items can only make one's poison rate go up, adding lower rate items can never make your total rate go down.

Have I stated the way poison works correctly?

Also, if anyone knows, what is the current thinking on prevent monster heal? Does poison really cause prevent monster heal not to work? Even with no poison items, I have never been able to convince myself that prevent monster heal did anything at all.