One common theme is the struggle between good and evil. Since you have an angel representing good and a devil representing evil, there's often a battle of ideologies. Another theme is redemption. Sometimes the devil character is shown to be redeemable through the influence of the angel.
One common theme is the struggle between good and evil. Since angels are often associated with good and devils with evil, their interactions and the choices they make highlight this eternal struggle.
One common theme is the struggle between good and evil within the relationship. The devil represents temptation and chaos, while the angel stands for purity and order. Another theme could be redemption, where the devil may be redeemed through the love of the angel.
One common theme is the struggle between good and evil within the context of a romantic relationship. The angel represents the good, pure side, while the devil represents the more rebellious and 'bad' side. And their love challenges the norms of both their worlds.
One common theme is redemption. The broken angel often tries to atone for something or regain its former self.
One common theme is friendship. Despite their differences, they form a bond. Another is the idea of redemption. Kenny might be seen as someone who needs to be redeemed in some way, and the angel could play a role in that.
Love is also a fairly common theme. It could be love for the angel that drives the characters to seek vengeance. There might also be themes of sacrifice. The characters may have to sacrifice a lot in their quest to avenge the angel. For example, they might sacrifice their own safety or relationships. In addition, the theme of power often comes up. Whether it's the power the angel had, or the power the avengers need to gain to succeed in their mission.
Well, in 'buffu angel' fanfic, one common theme is redemption. Maybe the angel has made some mistakes in the past and is trying to make up for it. There can also be a theme of love, not necessarily romantic love but also love for humanity or other beings. The idea of protecting something or someone dear is also quite common. This could be related to the angel's role in the fanfic world. Additionally, the theme of transformation is often seen. The angel might transform physically or in terms of its personality as the story progresses.
Power and its consequences can be a theme as well. The 'angel of slaughter' is likely to have a great deal of power. Fanfics might explore how this power affects the character, those around them, and the world they exist in. Does the power corrupt? Or can it be used for good despite its violent origin?
One common theme is friendship. Their bond is often explored in different ways, like how they support each other through tough times. Another is adventure. Many fanfics send them on exciting quests or journeys.
One common theme is redemption. Angel, being a vampire with a soul, often has a journey of redemption, and Xander can be a part of that journey in the fanfic. For example, Xander might be the one to push Angel further towards the good side.