One common theme is the struggle between good and evil. The assassin may be initially seen as a dark figure but might have a moral code that challenges the traditional view. Another theme is identity. The assassin might be trying to figure out who they are within the context of the Twilight universe.
One common theme is redemption. Since Tony is often portrayed as an assassin, which is a morally ambiguous role, many stories focus on his journey to redeem himself. Another theme is secrecy. He has to keep his assassin identity hidden from his friends or the public.
One common theme is redemption. Harry might see being an assassin as a way to atone for past mistakes or the chaos of the wizarding war. Another theme is secrecy. He has to keep his new identity and activities hidden from his friends and former allies. Also, there's often the theme of power and how he uses his assassin skills, whether it's for good or gets corrupted by the power.
Friendship or camaraderie can be a common theme as well. Even though assassins are often solitary characters, in some fanfictions, they form alliances or friendships with other players. This helps them in their quests and also adds an emotional depth to the story. And of course, the overarching theme of survival is always there. They need to survive the challenges, enemies, and traps in the game world.
Well, a major theme is power. Merlin already has magic, which is a form of power, and as an assassin, he has another kind of power. How he uses these powers together or separately is often explored. Also, the theme of betrayal is common. As an assassin, he might be betrayed or he might have to betray others. And there's the theme of survival. In the dangerous world of being an assassin, Merlin has to find ways to survive. This could involve using his wits, his magic, or his assassin skills.
One common plot twist could be that Bella's assassin skills are discovered by the Volturi, who then try to either recruit her or eliminate her because they see her as a threat to their power. Another might be that Bella discovers a secret society of assassins within the Twilight universe that has been manipulating the events all along, and she has to decide whether to join them or fight against them.
One common theme is the struggle between Percy's normal life and his new assassin identity. He has to balance his old friendships and responsibilities with this new, dangerous role.
A prevalent theme is power struggle. The assassin might have unique powers that either put them at odds with other powerful characters in Fairy Tail or make them a target. Also, friendship is a big theme. As they get to know the Fairy Tail gang, they start to understand the value of friendship which is a contrast to their solitary assassin life.
One common theme is the combination of magic and assassination skills. The characters often use magic in new and creative ways to support their assassin - like activities, like using transfiguration spells to create disguises for stealth missions.
Well, loyalty is a big theme. The assassin may have loyalty to their organization or their master, but then they start to question it as they encounter different situations. Another theme is the use of unique supernatural abilities. For example, they might have the ability to teleport or control minds in order to carry out their assassinations. Survival is also a common theme. They are constantly in dangerous situations and have to fight to stay alive. And sometimes, there's a theme of revenge. Maybe someone wronged them in the past, and they use their skills as an assassin to get revenge.
One common theme is forbidden love, just like in the original Twilight series. The idea of a vampire and a human being in love despite the odds.