It's not a ability but have a long timer, the banners, some discussion already was done in this thread: Nature tower banners

Quote Originally Posted by Terao View Post
I'd like to see reducing the 30:00 minutes timer to 5:00 or 10:00 minutes, and the effects should be stackable, too.

And please add a crafting quest to the nature tower comparable to the one at the imperial outpost to earn the nature tokens.