The Tower of Troubles is a Mages guild where young wizards and sorcerors are trained in the Art. It arose as a compromise between the gods of Bareel and the human practitioners of magic.
Specially treated troll flesh dried in strips like jerky which heals in small doses.
The Californian Sea Otter, as a species, eats about 30 different types of food found throughout its range. Each individual otter, however, will only eat 3 or 4 of these foods - those it was fed by its mother as a child. It will not eat the others even if failure to do so means it would starve. Maybe other, possibly larger and more dangerous creatures and monsters, have similar habits.