Welcome to the SS Andrea!
New abilities will be added in the coming days. New trees and such will be added throughout the campaign and beyond of course, but we are going to shoot for a solid starter set to kick things off with.
Also, don’t worry about making the most powerful character possible. We are going to be balancing this very frequently, especially in terms of Stamina costs, so focus on building a character that is fun, more than one that is powerful. You will get buffed and nerfed quite frequently at first.