Well, in the slime light novel, Diablo is extremely powerful too. He is a demon with incredible magical powers. His loyalty to Rimuru also adds to his effectiveness in battles. He has vast knowledge and is highly intelligent, which he uses to great advantage in combat situations. He can cast extremely powerful spells and has a menacing presence that can intimidate opponents.
The main plot often revolves around a slime that has some sort of special power or transformation into a dragon - like being. It likely goes on adventures, faces challenges, and grows stronger throughout the story.
One key aspect of Rimuru's strength is his magical abilities. He has a wide range of magic at his disposal, from offensive spells to healing and support magic. His Great Sage, which is like an intelligent advisor, helps him to optimize his use of magic. Rimuru also has a unique form of immortality. Even if he is defeated, he can often find a way to come back stronger. His ability to form strong pacts and agreements with other entities also gives him an advantage in terms of power and influence in the slime light novel world.
In some slime fanfics, there are magical girls or boys who encounter the slime. These characters are popular as they bring their own set of powers and personalities to the story. They might initially be scared of the slime but then learn to work with it.
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The main character is Rimuru Tempest. He was originally a human who got reincarnated as a slime in a different world. There are also many other important characters like Veldora, a powerful dragon who becomes Rimuru's friend and ally.
In fiction, characters like Thor from the Marvel universe are very strong. He wields his enchanted hammer Mjolnir and has the power of lightning. He has faced many powerful enemies and held his own. Then there's Hulk. His strength increases as he gets angrier, and he can smash through just about anything. In the world of Middle - earth from Tolkien's works, Morgoth was an extremely powerful character in the lore, though he was ultimately defeated. But his power was such that he could cause great destruction and corruption.
One of the strongest characters in fiction is Superman. He has superhuman strength, can fly, and has heat vision among other powers. His abilities make him extremely formidable against almost any foe.
It really depends on the specific fictional universe. In superhero comics, characters like Superman and Thor are often considered among the strongest. But in fantasy worlds, maybe characters like Gandalf or Dumbledore take the lead.
It's hard to say for sure as it depends on different fictional universes. But characters like Superman in DC Comics and Goku from Dragon Ball are often considered among the strongest.