King's Bounty: Armored Princess

Zilgadis gave me a lot of trouble back then; I tried for a long time and persistently to beat him as a Mage on medium difficulty, but I couldn't, and I ended up relying on random spellcasting :( (Later, I replayed the level as a Paladin). I noticed that Dwarves are very effective against him, especially Alchemists, due to their unique attack range of 3 cells, allowing you to attack both the Gremlin Tower and Zilgadis simultaneously. You can also use Engineers (they seem to have the same attack as Alchemists, but I haven't played with them much) with Droids and repair them.