Ice and Fire

Guys, what difficulty level are you playing on? It looks like you're making good progress :) I'm on Veteran, 4 months and 2 weeks in. Before that, I quickly completed the Dungeon campaign. Luckily, the enemies kept rushing in and falling into deadly traps. Plus, this was already my third playthrough, so I was familiar with everything. I emerged on the surface, quickly gathered my troops in 2-3 weeks. The tavern shows that only the Mountains faction is stronger than me, i.e., Wolfenstein. I took the first Castle. I'm heading for the second... And there's that jerk... I mean, that scoundrel, Hangwul, with a high threat level. In battle, it turned out that he has quite a bit of personal initiative, a lot of mana, and Blind. Basically, after his Blind spell, all my units just stand there and wait to be beaten. I've replayed it 4 times. I went back home for reinforcements. When I returned, he still had more troops, and the high threat level remained. It's not even about his threat level, but the fact that he constantly casts Blind with high frequency. So, should I just restart on Warrior difficulty? :) I mean, is it impossible to beat him on Veteran too? Or has anyone managed to do it?