Atrophy
Your muscles weaken as the strength is drained out of them.
Each point gives -1 to Strength Checks and Saves, and a 20% chance to fall Prone whenever you take a vigorous action.
If you already have a 100% chance to fall Prone, then one of your Atrophy becomes Withering instead.
Recovery
Reduce your Atrophy by 1 whenever you complete a Night's Rest. Some magic can also remove Atrophy.
Type
Magical