Rats infect, Snakes poison. Don't forget to drink yer antidote!

This session adds the infect ability for rats.

The infect ability had already been established for the mummy characters, so adding it was pretty trivial.

Poisoning is a completely new effect that works an entirely different way to infection.

In an infection, it lasts for a particular number of turns, and each turn you roll to see if you are damaged.

You also roll for damage when poisoned, but it does not go away on its own.

In fact, each time a character is poisoned, it accumulates.

Which meant that I needed to offer some way of eliminating poison.

So I added an antidote.