In a pinch, Winghael with resurrection.

Lord, why Winghael specifically? Maybe the Unicorn Queen, she at least has light magic from the start! I generally focus on developing the Magic Tower towards the end, as the stat increase is most important to me! I also prefer to level up the hero's magic after level 10. If someone levels up differently, challenge them and prove your version! And by the way, sometimes you really need to quickly eliminate mages, for example, if they are guarding the main mine or a strategic passage, but Ents don't appear quickly, usually towards the end of the second week!