How did you build him? My problem with assassins is that if the enemy gets a turn, you die. They have no survivability at all, and unless you get very lucky and get really nice loot, they don't do enough damage to one-shot the enemy (which IMO is what an assassin should do). If you leave your target standing after the first move, especially solo, I don't see how you survived.

He never gets hit and has medium defense in case he does. I loaded up a save and checked his dodge.  At lvl 20 he has 102 dodge 33 def 43 attack 28 init 163 accuracy crit chance of 43. The other hero in his stack, casts that stack wide defense buff on her first move in tactical battles which adds another 11 defense.  wraith race with lucky seems to help an assassin class.  and yes I did get lucky with loot early on. nice sword and a shield with high dodge, def and fire resist. and spectral chain mail I think it was.

Seems like you stumbled upon a very ideal setup for your assassin, Kangon.  I just don't typically find that's the case.

One thing about LH I've noticed (in my experience) is if you get lucky with great loot early on, you're smart enough in battle utilizing skills, don't get involved in unnecessary battles where you're highly out-classed, and make wise decisions while leveling up traits, *ANY* sov can solo most battles, regardless of their class/path.  In short, as long as you play the game wisely and focus on keeping your sov ahead of the curve (even on high difficulty settings), your sov is usually going to dominate in battles.

That said, I still consistently struggle the most with assassins.  Unless I get incredibly lucky with loot-finding, there are far more times I REALLY have to focus on keeping them alive more than any other classes.

I agree mages are fairly strong. I once tried a death mage, converting all nodes to death, raising mage's init and then instakilling all big monsters with a spell in 3 turns (even the last dragon rider in epic quest line, that was funny).

Then I tried a lot of assassins, I am always playing them with the Lucky trait, 2h spear, maxing dodge first, then crit/armor ignore. They works always really good, staying alive because of dodge and dealing massive dmg to armored enemies.

I tried a few warriors, but they tend to die a lot, defenders dealing not so good dmg and archers...well I really like archers, but I think they deal so little dmg it is not worth it, even if I am lucky to find a nice bow.

I find it interesting that everyone is talking about melee assassins.  I tend to make my Assassins and Commanders with ranged weapons, and a bow assassin seems to work pretty well.  Do you guys think melee assassins are stronger?  It is kind of nice to concentrate on crit damage and ignore defense...   though there are the golems and statues to worry about...

Yes I think the Warrior and Assassin trees are backwards right now.  Melee units make better Assassins and Archers make better Warriors.

Thought I would add this.  I am getting past mid game and my sov is now getting hit pretty regularly even with increased dodge. Capitar is researching the increased accuracy repeatable research.  Seems they are repeating it quite a bit. He is still useful to thunderstrike into the rear lines and take out the ranged units.

The horrid thing about bow-using assassins is that the assassin weapons are melee weapons. Further, I don't have any heroes using a bow because of the penalties to initiative. The one thing that bugs me is that warriors have a swarm bonus, and assassins do not have an attack-from-behind bonus. It may be implicit in the swarm system in that when I do attack from behind it appears to work better than from the front.

I am too lazy to try to time things out for the assassin with the action bar at the left. Moving from target to target would be facilitated for assassins if they did not have to respect zones-of-control impeding movement. That would enable them to sneak from target to target and avoid damage by just not being next to an enemy when the enemy gets its turn.  

But be careful what you wish for players! If we get to do it, the monsters do too!

One option for direct combat champions would be a trait that removed the xp penalty for having two champions in combat.   Really there is no good way to make a combat champion as powerful as a support champion in an army setting.  So make the combat champion an "honor guard" for a support champion.