Originally Posted by xpuntar

Well not exactly like this. With those you enable skills, which are already written in talent tree. With my example talent tree enable normal (and buyable from druid trainer), but way different skill, which give additional bonus to normal talent.

With such method, feral tree could be quite easily trimmed and at the same time make some powerful feral abilities out of reach for both resto and balance druids.

In my suggestion Feral Heart is normal (and different) skill, which can be bought from druid trainer, but in order to buy it player must have 5 talent points spend on Heart of the Wild talent.