I recommend putting points into these two Attributes in a roughly ratio. Wits will grant you Critical Chance as well as Initiative and is useful for spotting traps and other valuable items around the map. The Duelist will focus on Finesse and Wits. The Duelist is a high risk, high reward Build whereby the character focuses on high damage and Dodging. Since the game is extremely difficult this has come much more into focus than one would expect.