No, Smaug could not have become more powerful than Sauron. Sauron was a Maia, a powerful and immortal being, while Smaug was a dragon. Sauron's power was vast and he had the ability to manipulate and control others, as well as create powerful artifacts like the One Ring. Smaug, while formidable in his own right, did not possess the same level of inherent power or influence as Sauron. **

Melkor, also known as Morgoth, was more powerful than Sauron in the context of J.R.R. Tolkien's Middle-earth. Melkor was one of the Ainur, the most powerful beings created by Eru Ilúvatar, and he was the original Dark Lord who rebelled against the will of Eru Ilúvatar. Sauron was a Maia, a lesser order of beings compared to the Ainur, and he was originally a servant of Melkor. While Sauron was a formidable and influential figure in Middle-earth, Melkor's power and influence were greater, as he was responsible for much of the discord and evil in the world. **

Sauron could die if the One Ring, which is the source of his power and immortality, were to be destroyed. The destruction of the ring would weaken Sauron to the point where he could be defeated in battle by a powerful force. Additionally, if Sauron were to be separated from the ring and then killed, he would also die. Ultimately, Sauron's death is tied to the destruction of the One Ring, as it is the key to his immortality and power. **

Sauron, as depicted in J.R.R. Tolkien's Middle-earth legendarium, is often portrayed as inherently evil. He is a dark and malevolent being who seeks to dominate and control others through fear and power. His actions and motivations throughout the stories consistently align with evil intentions, such as his desire to enslave and rule over all of Middle-earth. While it can be argued that his origins and experiences may have influenced his descent into evil, his consistent choices and actions demonstrate an inherent inclination towards darkness and malevolence. **

Sauron doesn't become invisible because he is a Maia, a powerful spiritual being in the world of Middle-earth. As a Maia, Sauron's physical form is not his true essence, and he does not rely on physical means to conceal himself. Instead, he uses his immense power and influence to manipulate and control others, making invisibility unnecessary for him. Additionally, Sauron's presence is often felt through the malevolent force he exudes, making invisibility irrelevant to his goals of domination and control. **

The Sauron theory is a fan theory that suggests that the character Sauron from J.R.R. Tolkien's "The Lord of the Rings" series is actually a misunderstood and tragic figure. Proponents of this theory argue that Sauron's actions were driven by a desire to bring order to Middle-earth, rather than pure evil. They believe that Sauron's intentions were ultimately good, but his methods and the corrupting influence of the One Ring led him down a dark path. This theory offers a different perspective on the character of Sauron and challenges the traditional portrayal of him as a purely malevolent villain. **

It is difficult to determine who would win in a battle between Voldemort and Sauron as they both possess immense power and dark magic. Voldemort is a skilled wizard with cunning tactics and a strong desire for power, while Sauron is a dark lord with immense strength and influence. Ultimately, the outcome of their battle would depend on various factors such as their strategies, resources, and weaknesses. **

It is difficult to determine a clear winner between Thanos and Sauron as they come from different fictional universes with their own unique powers and abilities. Thanos, a powerful Marvel supervillain, possesses superhuman strength, durability, and intelligence, as well as the Infinity Gauntlet which grants him control over all aspects of reality. On the other hand, Sauron, a dark lord from J.R.R. Tolkien's Middle-earth, is a master of dark magic and commands a vast army of orcs and other creatures. Ultimately, the outcome of a battle between Thanos and Sauron would depend on the specific circumstances and context of the confrontation. **