I don't agree with the movement speed given back, it's useless, the pierce boost is better, you'll see I'm right once we also have alchemy, but I do agree that there is no good reason to upgrade it right now. I wanted to do it P anyway because I can't stand having M skills at high level but I got it G yesterday thinking it won't be that big of a difference at the extra damage I will be getting from M10 to G and let met tell you how wrong I was 🤣
I know this is how the company that shall not be named - that's not very smart in game balancing but oh well - made the berserk, extra attack speed and movement speed, but you take more damage. But it is genuinely very stupid to get punished the more you upgrade a skill. If you ask me it would make more sense for the % of damage taken to start high from M1 and lower with each level you train - to a certain point, ofc. You are supposed to get rewarded with better skills when you train them, not a better skill that you can't use because the monsters will oneshot you.