Morgoth might be the historic Big Bad of Tolkien's Middle-Earth, but he's not the most powerful being in Lord of the Rings history overall. As is implied by the fact he created the Valar, the most powerful being in Tolkien's mythology is Eru Ilúvatar, which means "the one, father of all." in Elvish.
Basically, Morgoth distributed his own power so that he could rule by proxy, enforcing his will through his creations. That makes a big difference in terms of power scale. In fact, Sauron during the Second Age was more powerful than Morgoth at the end of the First Age.
Along with Beren, Fingolfin is the only non-Ainurian enemy of Morgoth to cause him physical harm (unless one assumes that Ungoliant was not originally one of the Ainur). That an Elf and a mortal Man could injure Morgoth in his self-incarnated form suggests that, yes, he might have been slayable.
Tolkien has written that by the time Melkor was put away for good, he was probably less powerful than Sauron.
Melkor is the most powerful of the Valar but he turns to darkness and is renamed Morgoth, the primary antagonist of Arda. All evil in the world of Middle-earth ultimately stems from him. One of the Maiar of Aulë betrays his kind and becomes Morgoth's principal lieutenant and successor, Sauron.
Morgoth's rule and terror over Middle-earth allowed Sauron to rise to power and continue his legacy, but there were only a handful of beings more powerful than Morgoth in the entire history of Middle-earth. Sauron, even at his most powerful, would be no match for his old master.
The Tolkien scholar and philosopher Gene Hargrove argued in Mythlore in 1986 that Tolkien understood who Bombadil is, but purposefully made him enigmatic. Nevertheless, Tolkien left clues that Bombadil is a Vala, a god of Middle-Earth, specifically Aulë, the archangelic demigod who created the dwarves.
It was the Dagor Aglareb, the "Glorious Battle", called such because it was a great victory for the Elves. Fingolfin and Maedhros, eldest son of Fëanor, combined their strength and repelled Morgoth.
although Tom's origin and fate is shrouded in mystery. Still, other than Eru himself, Morgoth one-on-one was nearly always the most powerful being in the entire universe. Tolkien's meeting at the Council of Elrond makes things pretty clear. Tom would sit in his forest, protected for a long time…
While in many ways, Morgoth wins this pole, he is, however, still not the strongest. In Tolkien's lore, the most powerful being is Eru Ilúvatar, which means "the one, father of all” in Elvish.
Morgoth spent thousands of years corrupting the Earth and making many evil things. But this slowly dispersed his natural power into the fabric of reality, so that he himself became diminished and weakened on a personal level. (This was not something he'd planned or expected.)
However, the mere fact that the Valar didn't prioritize perusing Sauron proved he was a much lesser threat than Morgoth. It made perfect sense because Morgoth was a Valar, and Sauron was only a Maia. So, while Sauron was evil, Morgoth was clearly much worse.
Among the Valar are some of the most powerful and wise of the Ainur, including Manwë, the Lord of the Valar, and Melkor, his brother.
It begins after Sauron's master, the evil lord Morgoth, is defeated. Sauron may have gone into hiding, but he's still alive: the series will eventually show Sauron's creation of the titular rings of power—including the one ring to rule them all.
The Second Age begins around the time Morgoth was defeated, in about the 584th year after the Return of the Noldor to Middle-earth, and ends with the first defeat of Sauron. This is the first time the story of The Second Age will be brought to life on screen.
It is often thought that his mysterious origin may tie back to the Ainur, the angelic creatures who had a hand in creating Middle-earth itself. Using softer, gentler sources such as music and the forest around him, Bombadil could perform great magic to seemingly control the world, reality and nature around him.
14 Tom Bombadil, The Joyful
He is a joyful soul, and this hides an immense well of power. No earthly strife seems to trouble him, and he is immune to the power of the Ring. Such propensity aligns Tom with the Valar or perhaps something greater, and Gandalf would never be able to overpower him.
As he is an ancient spirit tied to the woodland and the acorns and the leaves, it would make sense that he is only able to exist when he is near them. It also explains why he can't take the ring to Mordor and destroy it himself, because he is encased within his borders, and cannot step outside them.
The Lord of the Rings: The Rings of Power takes place in the Second Age of Middle-earth, when Morgoth, the First Dark Lord, was already defeated. However, there's still a shadow threatening to engulf the world, as Morgoth's general, Sauron, is still waiting for the right moment to strike.
Capabilities. Balrogs were incredibly powerful creatures. They were amongst the most trusted and oldest servants of Morgoth, and, with dragons, were the most powerful creatures under Morgoth's command, possibly one of the most powerful entities in all of Middle Earth.
His exact race is not known, and he remains mysterious—although with some apparent magical and spiritual abilities. Tom Bombadil lived with his wife, Goldberry, just east of the Shire in the Old Forest. He has a few titles, like The First and Eldest.
Would Tom Bombadil be able to defeat Sauron? No. Tom is not a lord of armies like Sauron, he has no forces to resist or attack the Dark Lord. All the armies of the Free People could barely withstand a wave of Sauron's power, other greater ones would come.
Tom Bombadil failed to appear in The Rings of Power season 1, but is definitely lurking somewhere during Amazon's Middle-earth series.