Yes, the Combat page is pretty good. Local and Global Modifiers and Skill Types is another source worth reading. You might find it a bit abstract at first, so refer to it later when you have a better overview.
Crate has a large toolset for their (mastery) skills so that each of them is unique even if there are similar skills. But this also makes them somewhat confusing.
- Turbo-charge your auto-attacks with default attack replacers and WPS is helpful for weapon focussed builds.
- When an active skill comes with modifiers, then check if some of them are Secondary Skill Modifiers.
- Counter Strike (Soldier) is the other aura (from a mastery) that works like Vindictive Flame.
- The question with auras is, if a flat damage number buffs your weapon damage or if the aura damages enemies directly - see Spectral Binding (Necromancer). The base skill does the former, whereas the modifier has a radius and does the latter.
- Other than that the description can clarify things, which cannot be covered by the basic list of stats. Or check out What are you doing? Visual examples of skills and Skills granted by items.
- Miscellaneous
- Transmuted Forcewave (Soldier) scales with cast speed.
- Upheaval (Shaman) cannot trigger anymore, if your WPSs have a total chance of 100% (or higher).