People feel obligated to take Mental Tyranny with mindmages because it's the only thing that directly raises their damage. In actual fact, you can get some perfectly legitimate defensive setups going instead.
Of course, you can build a Str/Wil/Cun Solipsist and take Superpower for massive Dream Hammer damage, a fairly large spike in Mindpower, and a small loss in overall durability as compared to Will/Cun/Con.
By the way, this change would most help that kind of a build.
