[quote=@PKMNB0Y]
[@TheFake]: As with the other forms I had issue with before: clarity. I need to have a more concrete idea of what the heck a 'Warren' is. Are there restrictions on entry? How easy is it to move people between locations? Can you bring other people? Stuff like that. Also stuff in terms of power output.
[/quote]

A warren is an alternate dimension loosely based on the real world where magic comes from. A more 'vanilla' example would be heaven and holy type magic. Really the only restriction on entry is having a mage with the knowledge to open a way for you. A handful of people would be no problem but to move anything large like a ship or an army requires a whole lot more effort or a bunch of mages working together. Ben usually sticks to two or three other people.

As far as raw power goes, he would be able to knock down a house but much larger would be beyond his abilities. His real strength is applying it where it would do the most damage.