EbonySatori

Does that mean that abilities appended with _Level do improve with unit level, while the otherwise identical ability without _Level does not improve with unit level?

Some abilities in CoreAbilities.xml seem to be duplicates, except that the name of one is appended with _Level, and the other is not. Examples are AmbushAbility and AmbushAbility_Level; DisciplineAbility and DisciplineAbility_Level. What is the difference between xxxxAbility and xxxxAbility_Level?