I think it would be sufficient to have different types of empowerment:
- some skills get a hefty damage boost (single target like Overpower)
- some get a boost to number of jumps or/and range of jumps (like chain lightning)
- Pure buff or debuff skills would get turned into a mass-version
- AoE skills perhaps get a slight damage buff and an areasize increase
- summons would summon a more monstrous version
Just something like this. Some skills perhaps have just no source-version because they are to simple, perhaps just every Tier 1 skill. At least source versions of tactical retreat or Rage won't be that necessary or would perhaps even be to good? At least here I could only thing of prolonged duration of the buffs.
It really would not mean, every skill needs a unique source version in my eyes.
