“Alternative League” is a mod that replaces the Dungeon faction.

I played through the Warlock campaign on Veteran difficulty. It was okay. The fact that the game provides a large number of troops certainly makes the start easier. You can get Darkness and Light from witches, and they work correctly. The animations in the cutscenes are a bit glitchy when a creature simply doesn't have the necessary animation, but that's understandable. Overall, all the units worked exactly as intended. The building system also works as it should, forcing you to focus and constantly make choices. The sacrificial pit? In my opinion, it's still the same as in Heroes of Might and Magic, on average, increasing the growth rate through an efficient minor artifact with +3 +1 will cost about 700~2000 gold per creature. Unless there's a level 1 dwelling or Orson nearby, it might be worth it. At least, the numbers seem reasonable, so I don't see a reason to change it.