In all three games abilities can be upgraded through the allocation of points that are gained from leveling the character. In the original Mass Effect, abilities are referred to as talents, whereas in Mass Effect 2 and Mass Effect 3 they are referred to as powers. Each class has a unique pool of available abilities plus a corresponding unique class ability that improves attributes important to that class. Each class has distinct proficiencies in three main areas: general combat using firearms or melee strikes, tech attacks, and biotics.
