Here is a specific example: Yesterday, I was bored and started playing the "An Eye for an Eye" scenario (about how Dungeon was driving out Dwarves from a dungeon) with a starting hero, Agbeth (Dark Mystic), and an army of 37 Assassins (naturally, immediately converted into Marksmen) + 22 Furies + 8 Minotaurs. I reached a large garrison on the approaches to his castle (on Veteran difficulty) without ever returning to the castle (only support brought Alt Sorceresses and 60 Marksmen). It was enough to use Mass Slow (he has a lot of resistance, so Mass Slow dealt significant damage) enhanced with Magic Arrow. And a Wand of Fortune and Cursed Land... After this, I don't understand why some people defend Assassins so much...