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A disease is a long term condition that impairs characters.

Exposure[]

Some creature powers or environmental exposure may cause a target to be subject to a disease, but this is not an automatic contraction.  By default, creatures exposed to a disease must make a saving throw at the end of the encounter - a failure causes the target to contract the disease.  If the target is exposed to the disease more than once in a given encounter, the saving throw is made only once. 

Infection[]

When the character is infected by a disease, it is usually at one of four stages:

  • Stage 0: The disease is cured
  • Stage 1: The initial effect of the disease
  • Stage 2: A more severe effect
  • Stage 3: The final state, which cannot be cured without special assistance.

The disease normally starts at stage one. If the disease enters a new stage, the effects of the new stage normally replace the effects of the old one.

Progression[]

The disease attempts to progress at the end of each extended rest. At the end of each extended rest, the infected character normally makes an Endurance check. If it is greater than the moderate DC, the disease stage is reduced by 1. If it is less than the easy DC, the disease stage increases by 1. During the extended rest, another character can attempt to treat the disease with the Heal check, where the infected character can use the better of the heal or endurance checks against the disease.

When the disease reaches the final stage (usually stage 3), skill checks may no longer be used for the disease, and may only be cured through special means.

As a house rule, you may consider having a disease check every 24 hours if the characters try forgoing extended rests (with a minimum time of 12 hours between checks.) Additionally, the GM may want to increase the DCs to moderate and hard (see statistics).

Statistics[]

The following subjects have been infected with diseases to determine how well they incubate. Standard diseases appear to have less standing power than a single minion, considering that two level 1 characters can hold off a high level disease with a great chance of success from skill checks alone:

Subject Disease level Recovery rate Average time to recovery
Endurance -1 1 66.6% 2.1 rests
Endurance 0 1 74.6% 2.1 rests
Endurance -1
Heal -1.
1 95.2% 1.7
Endurance -1
Heal 9
1 100% 1.1 rests
Endurance -1
Heal 9
6 99.9% 1.26 rests
Endurance 9
Heal 9
16 98.3% 1.7 rests
Endurance 9
Heal 9
21 83.2% 2.8 rests
Level 8
Endurance 11
Heal 14
30 46.3% 3.8 rests


If you change the DCs to moderate to keep the disease stable and hard to recover from the disease, the statistics change, where heal or endurance behave more like a counter to the disease rather than the disease being feeble:

Subject Disease level Recovery rate Average time to recovery
Endurance -1 1 8.3% 1.77 rests
Endurance 0 1 17% 2 rests
Endurance -1
Heal -1
1 25% 3.06
Endurance 0
Heal 0
1 50.5% 3.29 rests
Endurance -1
Heal 9
1 99% 1.87 rests
Endurance -1
Heal 9
2 96% 1.87 rests
Endurance 9
Heal 9
7 98% 1.89 rests
Level 21
Endurance 22
Heal 22
30 41% 5.2 rests
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