This walkthrough will cover the entire game on the hard difficulty. All Main Quests and Faction quests, but I will be skipping most, if not all, Side Quests and Tasks.
Do whatever you want...I prefer to get 3 points into Detect Hidden, then split points between Sagecraft and Blacksmithing.
For this guide, I'll be using Chakrams and Fire/Lightning/Ice spells. I found the sorcery abilities the most fun to use because I do not have patience to sneak up on my enemies (Finesse), and the Might combat felt too simple.
As soon as you get the chance, reset all your skill points at a Fateweaver because the game starts you off with 1 point in each skill tree, so if you're going strictly Sorcery (or Finesse or Might), you will get 2 extra points to spend.
Here's my plan for spending Ability Points: