One of the best tropes is the 'Underdog Triumphs'. It gives hope and is very inspiring. For example, in 'Rocky', the main character, who is an underdog, manages to go the distance against a much stronger opponent. As for the worst trope, the 'Damsel in Distress' can be quite tiresome. It often portrays women as helpless and in need of male rescue all the time.
The 'Found Family' trope is great. It shows that family doesn't have to be blood - related, like in 'Guardians of the Galaxy'. The characters from different backgrounds come together and form a strong bond. A bad trope is 'The Prophecy'. It can sometimes feel like the characters are just following a set path without much free will, and the story becomes too predictable.
One of the best tropes in fiction is the 'Underdog Triumphs'. It gives readers hope and a sense of satisfaction. We see it in stories like 'Rocky' where the protagonist, an ordinary boxer, overcomes great odds. On the other hand, a worst trope can be the 'Damsel in Distress' which often portrays women as helpless. It's overused and limits the female characters' agency. Another good trope is 'The Mentor'. Think of Dumbledore in 'Harry Potter'. He guides and helps Harry grow.
This question was not easy to answer because the quality and evaluation of the male lead in the anime depended on many factors such as the plot, character creation, audience preferences, and so on. Moreover, the definition of "the most scum" varied from person to person.
However, if it was referring to the performance of the male lead in a certain anime, then it could be said that every character had its own unique charm and value. It was difficult to simply rate a character as the "worst".
The best tropes can enhance the overall story. For instance, the 'Hero's Journey' trope provides a clear structure that readers can follow. It gives a sense of familiarity and comfort. In contrast, the worst tropes can detract from the story. The 'MacGuffin' when overused can make the story seem too contrived as it's just a plot device that doesn't really add much depth to the characters or the overall plot.
One trope is the 'instant love' between characters from different universes. For example, in a crossover of 'Twilight' and 'Percy Jackson', Bella and Percy meet and fall in love immediately without any real development. It's unrealistic and just a lazy way to create a relationship. Another bad trope is the 'power - up' of a character for no reason. Say in a crossover of 'Dragon Ball Z' and 'Naruto', Naruto suddenly gets all of Goku's powers and can defeat any enemy with ease, ruining the balance of both series.
In my opinion, 'High School DxD' had some issues as an anime adaptation of a light novel. While it was popular for its fanservice, it deviated quite a bit from the original light novel in terms of story and character growth in the later seasons. The story started to feel more like an excuse to show off the female characters' bodies rather than focusing on the plot and character development that was in the light novel.
One popular trope is the 'accidental harem' where the protagonist unknowingly attracts multiple love interests. For example, in many school - set anime fanfictions, the main character's kind nature or unique talent draws in different characters of the opposite sex. Another is the 'harem competition' where the love interests compete for the protagonist's affection, often leading to humorous and dramatic situations. Also, the 'protective harem' where the members of the harem work together to protect the protagonist from external threats is quite common.
Poor pacing is a major reason. For example, if an anime tries to cover too much of the light novel in a short time, it will end up skipping important details. Like in the case of some adaptations where the story feels disjointed as it jumps from one plot point to another without proper transition. This makes it hard for the viewers to follow the story and enjoy it as much as they could have if it was a better adaptation.
There are several tropes that frequently show up in anime x reader lemon fanfiction. One of them is the 'Tsundere' behavior trope. The anime character may act cold or aloof at first but then gradually shows their softer side towards the reader. The 'Hidden Identity' trope is also common, where the reader or the anime character has a secret identity that is gradually revealed during the course of the story. Another interesting trope is the 'Time - Travel' trope, where the reader either travels back in time to meet the anime character or the anime character travels to the reader's time, creating a unique and often romantic situation.