A few days passed, and I finished the job with the automatons. There were no more excuses, so I ended up traveling to Loistavadvaar. I didn't really have to, because I could use any other device, but I still had a fat stack of points in that city, so it seemed like a waste to not use them.
In some way, I already made my decision through that.
I started by upgrading the rest of the 'Legendary Dreadnought' skillset since it seemed to be the best decision. After all, to achieve our goal all I had to do was make my way to the trees, to consume the fruits. The defense was the way to go.
This unlocked the final evolution of the class, the 'Havocker'. I bought it. That gave me access to the following skills: 'Legendary strength II', 'Legendary endurance II', 'Toughness V', 'Vitality V', 'Natural armor IV', 'Unbleeding IV', 'Relentless IV', 'Regeneration III', 'Indomitable II', 'Legendary life force II', 'Unstoppable II', 'Wrath', 'Fortress of Flesh'.