While this might not come as a shock to some people, I honestly believe that the Mentalist is by far the best and most flexible controller made for 4e - Mike Mearls (or however wrote it), eat your heart out, because the Mentalist eclipses the Psion by far.
Then again all this might have something to do with me being the author. So take the above as a highly subjective opinion ;)
I set out to create a flexible controller that actually controlled. When I started writing the Mentalist, only the wizard was out and I was very far from happy with the wizard as a controller. Sure, he had some awesome dailies, but often it felt as if many of the spells would have been better off doing no or less damage, all while inflicting harsher or more conditions to the target(s).
That was the goal. A more controllery controller. I think that both sub-builds of the Mentalist (Empath and Kinecist) fit that description, although the Empath is (IMO) quite a bit more controllery than the kinecist. Speaking of the builds: With different class features and a clearly defined "red line" through all the powers, you will hopefully experience two builds that feel very differently.
Anyway, I am starting to ramble. I just wanted to invite anyone with questions of feedback or flames to post as an answer to this article. And I am not kidding. If you have bought the Mentalist and hate it, stop by and flame away ;)
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