Warlock – “Raelag’s Offer” [Campaign 4, Mission 5]

I, on the contrary, always try to complete battles with minimal losses until the very end of the mission.

By the way, I remembered about Hydras. When Enhanced Armageddon is cast (it deals 1350 damage at that moment), it kills 9 of its own Hydras in one go (we don't count the rest of the minor creatures), so if there are about 30 of them left, that's fine. In 3 turns, it can defeat Warlord.