Sinew's drop from creatues like wolves, i dont know if any animal drops it, but wolves usually, you can try and check the butcher on the cysael market, sometimes he has animal ingredients
Yesterday I got 2 sinew off of wild boars north of Cyseal. I've seen a very few from wolves in the past, but apparently they also drop from the hostile pigs.
It made me wonder if the drop rate had been tweaked slightly. I'd gone several levels prior to this without a single sinew sighting, then suddenly 2 in one fight (from 2 pigs).
