I have seen references on this forum that indicate that some skills "grow" with you. For example, Empathy at level 6 says it "heals friendly targets 30-35 every 3 seconds" but some have suggested that it heals for much more than that because it scales with some attribute of your character (such as max damage or DPS or something). But I have seen some references to skills that do not scale. For example, that Pain at level 6 never does more than the "15-25 area damage at end of stun" that it states.
How can it be determined which skills "grow with you" and which do not? Also, what do they "grow" with? Maximum damage, DPS, something else?