3. How can a monster harm a character in a new and unusual way?
The villagers will kill you. The pawns and catspaws of Chaos won’t need to.
You might even come back to the monsters… ostracized, starving, and beaten desperate. (Should you survive the goodly alewives and shire reeves and gong farmers, of course.)
Chaos begets abandonment and acceleration of change, surging glorious impermanence.
(Think of it as a Supraphysical energy transmitting impossibilities, enforcing extraordinary novelty.)
The monster need only make you a monster too.
For instance, agents of chaos can force a save vs. mutation (magic probably). Powerful beings at will. Minor beings daily.
Maybe use these charts along with 2 differently colored d6s:
The terms in italics at the end of each entry tell you how to deal with somebody rolling the same mutation more than once.