Next up is the spell "Summon Undead".
Depending on its upgrade level, the Overlord can summon different types of skeletons to aid in battle. At base level, a simple Skeleton with a melee sword attack. At level 2, the Dark Knight appears — still a melee fighter but much stronger! At level 3, a powerful Lich Mage is summoned, who uses ranged spells to attack. ⚔️💀