right in the entrace of the main city there is a guard in front of a house with a sword simble, you just need to suck him off or pay 100g then you can train with the captain of the guar, aftar a little bit of training you become a swordsman and can use a sword
Exploring dungeons you may found a book at the end of it, if you interact with that you learn a new magic.
For what a know, there is healing in the slime cave, fire bolt in the goblin cave and summon skeleton warrior in the big tower on the north of de main city
