I didn't even use unstoppable in my last fight. I got in, I used windblade and Elandar was left with 25% hp. One flurry took him away for good and I was even able to save Aeryn.
I went on to kill athamaton (had many turns of unstoppable left) and Linaiil too.
I was almost (almost) able to clear the room of death during a single unstoppable as the first windblade killed all 4 dragons in the center (lol).
Now, I had great gear and all, but this was awesome. None of my other insane winners had such insane damage.
This class is pretty weak early on and midgame is not much better because you have poor life rating and no defense untill you get unstoppable. Even then, it's very hard to use it because you're left with no stamina.
I died many times during this run, things started to get better once I got a "second wind" armor to manage stamina.
Overall, the class felt very well designed as the trees have great synergy and once you get around lvl 35 you really start to have a lot of fun. I'm a bit sad marauder got changed completely (and ogre got nerfed) in 1.5

Here's the char if someone is intrested: https://te4.org/characters/207170/tome/ ... 7544bff5e4
Edit: I liked the class gameplay so much I decided to do another run. This time I picked cornac as you can unlock Battle tactics and Bloodthirst while still having 4 inscrtiptions. Cornac allows your build to be ready much faster and not having to wait for legacy of the naloren I went 5/5 in weapon and dagger mastery which made my damage very good from start to finish. The run was much easier and I never died until lvl 33 or so. My deaths were all due to overconfidence rather than hard situations. I played very carefully early game then when I got my build going I started making bad calls because I felt "unstoppable"

A big mistake I made in the previous run was not unlocking harmony but I had very few generics to spare since ogre needs big investment.
By endgame I had 7k DPT and 20k flurry, when I killed the final bosses I had 2 turns of unstoppable left (at 200% blobal speed and 150% attack speed, so I had 4-5 bumps left which is a lot of damage).
When Athamaton died I still had 4 turns left.
I killed Linail before doing all the prides because I felt like doing something stupid. I died once but I got her down even if I had bad gear at the time. I guess this tells how powerful this build is

I found out you don't really need a "second wind" armor. I invested into will to increase my stamina pool and into adrenaline surge. Adrenaline surge will not allow you to use your abilities if you get at 1hp during unstoppable but your sustains will not deactivate. So by mid game you have the stamina to pop unstoppable, DF, flurry and cripple. After that you'll probably be at 0 stamina but high global speed and adrenaline surge will keep total thuggery and momentum up while you bump everything to death!
Overall, this char was stronger during both early game and endgame. The damage output was higher but since I had elemental harmony I can't really compare the two. Maybe legacy of the naloren + flexible combat is a superior single target combo but windblade is just too useful. Every time I had to go upstairs in High peak I would buff as much as I could and even when I got crazy spawns with 2-4 rares and a unique I could just nuke the whole room killing everything so that I could deal with the strong one.
I guess my next serious run will be a cornac marauder in 1.5!
Link to the char: https://te4.org/characters/207170/tome/ ... 3060e67506
Edit: so I have even another winner, another cornac marauder. I guess I'm in love with this class. Nothing new with this build. I didn't have any great item so I skipped charm mastery and invested a bit into the mobility tree. I found out Light of Foot is pretty effective as you have step up so you walk around a lot.
Link to the char: https://te4.org/characters/207170/tome/ ... df5d4ecb32
If you want to see why I love this class so much, here's some videos to show how crazy the damage can get:
Lina: https://www.youtube.com/watch?v=hC-o7yvfOfo
Athamaton: https://www.youtube.com/watch?v=Tfq2hWM ... e=youtu.be
Final bosses: https://www.youtube.com/watch?v=6T2XquZ ... e=youtu.be