vasik
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based on the screenshot, you made one mistake :)
you spared 7 Imps individually for the garrison (but this is due to a lack of experience), and this mistake could have been very significant for the hero (Manticoras might not be killed on the hero, and then you simply won't have anywhere to hide), and the Fire Elementals, well, they are invulnerable to the hero, and for a beginner, slowing them down + a Crystal/Portal + a Bow + Succubi can help. Or a Machine + regeneration on a level 7 creature. And also a Tent.
However, if you think about it, if you can't defeat the Manticore on the hero, you won't have access to Utopia (gold, artifacts, spells), and then battles with demons will be almost impossible.
(but in general, level 2 is very difficult, especially where there are 4 demons, level 4 of the campaign will be easier)
Added after 23 minutes
it's strange that your garrisons are invulnerable; both blue garrisons were killed in my game (one with 7 Imps, and even 7 Skeletons), and also the Astral Dragons guarding the +20 speed ring for the Necropolis.
you spared 7 Imps individually for the garrison (but this is due to a lack of experience), and this mistake could have been very significant for the hero (Manticoras might not be killed on the hero, and then you simply won't have anywhere to hide), and the Fire Elementals, well, they are invulnerable to the hero, and for a beginner, slowing them down + a Crystal/Portal + a Bow + Succubi can help. Or a Machine + regeneration on a level 7 creature. And also a Tent.
However, if you think about it, if you can't defeat the Manticore on the hero, you won't have access to Utopia (gold, artifacts, spells), and then battles with demons will be almost impossible.
(but in general, level 2 is very difficult, especially where there are 4 demons, level 4 of the campaign will be easier)
Added after 23 minutes
it's strange that your garrisons are invulnerable; both blue garrisons were killed in my game (one with 7 Imps, and even 7 Skeletons), and also the Astral Dragons guarding the +20 speed ring for the Necropolis.