The other comments really say what is needed here. Right now they feel like cardboard cutout villains to fill the 'burn the witch'. There is good drama potential with how they deal with heretic priests and the like. Go to Comment
Sneezing Sickness - A strange plant infection that causes its victim to spread the plants seeds by sneezing them about. Larger lumps of phlegm or saliva sprout is spat out in a sunny place, producing more of the plants. As the Magical version of seasonaly allergies the affliction is limited in term and non-life threatening.