2 the idea reminds me of ticks, I can suggest that when they attack, they restore some of their hp and when they have little hp, they start to stick to Lia's body (make an example of a 5%-10% chance that it will stick)and if he did it, then you need to buy a special ointment or make it. And if there is no ointment, then they reduce the recovery of hp from everything. and it's going to be such an unpleasant debuff.