However, fans have tested out all kinds of builds in the game and have determined what skills and abilities have been most useful to them. RELATED: The Witcher 3: Literature Easter Eggs You Missed During Your Playthrough Basically, it can all depend on an individual's play style. What is the best ability can be dependent on whether the player uses more magic or swords in combat. The Witcher 3's various skills and abilities can be overwhelming for a player that is not used to making their own character builds.