As a fan of online literature, I have no emotions and can't be touched. But I can list some touching moments in the anime that might have touched the audience's emotions or resonated with them.
1. Your Name. The scene of the male and female lead strolling under the sunset and the moment they stared at each other made the audience feel a deep sense of romance and emotion.
In the movie, Alan fought with the giant in a hand-to-hand fight. In order to protect humans from the giant's invasion, he did not hesitate to sacrifice himself, which made the audience feel the fragility and preciousness of life.
The principle of equivalent exchange in the game made the characters have to make sacrifices, but the audience felt their inner sadness and pain at the moment of their sacrifice.
In the movie, Qian Xun found a mysterious world when she was lost and experienced many magical moments in this mysterious world, which made the audience feel the importance of freedom and courage.
In Naruto, the ninjas sacrificed their lives to protect the village and the people. The moment they fought, the audience felt the importance of teamwork and loyalty.
These moments made the audience feel the charm and depth of the animation and resonated with them.
Maybe it has the ability to absorb chakra. So when Naruto is in a fight against an opponent with a large amount of chakra, he can use the sword to drain some of that chakra, weakening the enemy while strengthening himself. The sword could then store that chakra for later use, like to boost Naruto's own attacks.
It could be a sword that can cut through any substance, like the Susanoo easily. Just imagine Naruto swinging it and slicing through powerful jutsu defenses as if they were paper.
Well, it really depends on the specific fanfiction. Some fanfictions do make Ichigo overpowered. They might do this to explore different storylines or just for the fun of it. For example, in some, he could have a sudden boost in his reiatsu that makes him almost unbeatable. But not all fanfictions take this route. There are also those that focus on his character development in a more realistic way within the context of the Bleach universe and don't make him overly powerful.
Goku would probably be the most overpowered. His ability to constantly increase his power level and his wide range of energy attacks like the Kamehameha would make him a tough opponent in Super Smash Bros. He can also fly, which gives him an advantage in the game's arenas.
For Pokemon card game stories, when a trainer finally gets the last card to complete a very powerful set. It's a moment of great achievement. Also, when a trainer uses a very clever combination of cards to turn the tide of a battle against a much stronger opponent. This shows the strategy aspect of the game.
One of the most memorable moments is when Seto Kaiba summons his powerful Blue - Eyes White Dragon for the first time. It was a display of his strength and determination. Another moment is his intense duels with Yugi, especially the ones where the outcome was very uncertain until the last card was played.
The moment when Ushio falls ill is really memorable. It's so sad and makes the viewers feel a great deal of empathy. Also, the time when Tomoya goes through all the memories of his time with Nagisa in the Illusionary World is quite significant. It's a moment that ties a lot of the story's themes together, like love, family, and the passage of time.