Silenced
A silenced creature takes has a -5 penalty to all rolls and DCs they make as part of using their mouths be it an action with a Verbal component, bite attack, breath weapon, swallow whole attack, or similar effects. Any attempt to eat, drink, or otherwise imbibe or swallow something that normally wouldn't require a roll now has a 50% failure chance.
Stage 2: A silenced 2 creature is completely unable to do any of the activities normally penalized by silenced 1.
Stage 3: As silenced 2 except the creature is also unable to breathe.
Stage 4: As silenced 3 except the creature treats every round they have this condition as 5 rounds for determining how quickly they suffocate.