I found the tears of Innos in the cellar of the monastery (5th chapter). What are they good for?
First of all talk with Pyrokar about them. Only mages can drink this potion. It increases their attributes, they are healed and can sprint for a short time. If a member of another guild tries to drink the potion, he will go up in flames! Paladins are able to consecrate their sword a second time in the monastery’s chapel. The tears are useless for dragon hunters.