Rimuru Tempest is extremely strong, regarded as one of the most powerful characters in "That Time I Got Reincarnated as a Slime." Starting as a slime, Rimuru rapidly evolved into a true demon lord with incredible magic abilities, supreme regeneration, shape-shifting, and universal perception. His ultimate skills, including Azathoth and Lord of Wisdom Raphael, give him godlike versatility in combat. By the latest light novel volumes, Rimuru's power surpasses many other demon lords, even rivaling or exceeding characters who were initially far stronger than him. His potential ranges from hyperversal to outerversal levels, including control over space-time and immense spiritual pressure, making him virtually unbeatable in many scenarios.