Gestalt

Gestalt Prerequisite: Have a level in a class that grants you a subclass.

You may choose a new subclass from the class you already have a subclass in when you take this feat. You may choose one subclass feature of that new subclass of a level you would be able to gain and add that to your character’s class features.

When you gain a new subclass feature from the prerequisite class, you may choose a new subclass feature from the chosen subclass of a level you would be able to gain and exchange that with the one chosen when you took this feat.