For example, if you look at the poison dart skill you are seeing the damage output for your LVL60 poison dart and it is small for what it costs. you can also see the little amount of dmg in the locust swarm as well. conversely one of the higher damage to cost ratio spells is the Haunt skill.
If this apparent damage to cost ratio continues to be imbalanced i believe that not many people will want to play this build, or if they do, you will only see the same skills being spammed.
Has anyone else seen this?