Happy to help :D
My hope is to spread as much skill around with the game as possible so that Artur can get the best possible audience to test his game against :D
I will say, probably the most important thing in my writeup after having read what you already caught in your reply, is Intimidate at level 2. It maybe is too powerful, but I think there's a lack of other panic buttons at the moment to take it's place, especially in fitting the thematic direction of a warlock. With it, you only really only have to be afraid of anything that can hurt you outside of it's range. It also has a very short cast time (.30) which means you can use it on a group of three faster than some characters can move, or cast it on an enemy one tile away that would normally be able to close the gap and hit you before your spell finished.
The movement speed+ ability would be useful if you missed intimidate, the backflip(?) ability on poacher might also be enough to save your life but I haven't sprung for that one yet. The level 2 AoE fireball isn't worth taking imo IF one of these utility abilities is available instead. There are way better AoE attacks later on, early on your priority is going to be surviving and escaping danger, not taking on groups of enemies.
This all said though, it might still be a bit punishingly difficult. I suspect the next minor patch will effectively iron these things out, but we'll have to wait and see :)