One interesting element is the combination of different power systems. In 'RWBY', there are the unique Semblances and Dust-based powers, while 'Mass Effect' has biotics and advanced technology. When combined, it can lead to really cool battle scenes and power-ups for the characters.
Another concept is that the Reapers from Mass Effect are interested in the animatronics. They see the ability of the animatronics to keep 'coming back to life' in a sense as a useful trait. So they start to experiment on them, which causes all sorts of chaos as the animatronics' programming and the Reapers' technology clash.
One popular site to find fanfiction for both is Archive of Our Own (AO3). You can search for 'Mass Effect RWBY crossover' on it and explore the available works. There are often interesting stories that blend the universes in unique ways.
One interesting Mass Effect 3 fanfiction could be about the alternate endings. For example, a story where Shepard manages to find a completely new way to end the Reaper threat that wasn't in the original game. Another could focus on the relationships between the different species in the Mass Effect universe post - Mass Effect 3 events. Maybe a story about how the krogan and the salarians are rebuilding their trust after the genophage cure.
There are indeed. A lot of fanfiction writers prefer to delve into the more heroic and complex aspects of Ashley. For example, her struggles with the moral dilemmas in the game. These types of fanfictions can be really engaging as they show different sides of her character that might not be fully explored in the original game.
Character crossovers are also a big theme. Writers like to see how characters from RWBY would react to the situations and characters in the Mass Effect universe and vice versa. For example, Ruby meeting Shepard could lead to some really interesting storylines.
For me, the pairing of Miranda and Emerald could be really exciting. Miranda's genetically - enhanced abilities and her strategic mind could be a great influence on Emerald. Meanwhile, Emerald could show Miranda some of the more underhanded tactics used in RWBY's world. Also, Kaidan and Ren would be an interesting combination. Kaidan's biotic powers and Ren's ability to control his Aura could lead to some interesting experiments in combining their powers. They could also bond over their more reserved personalities.
The contrast in settings and aesthetics. The sleek, high - tech look of Mass Effect ships and cities against the more primal and often large - scale presence of dragons. This can lead to some really visually appealing and conceptually exciting scenes. For instance, a dragon flying through the skies of a Mass Effect planet filled with neon - lit cities and advanced weaponry defenses.
Another interesting aspect could be alternate universes. Fanfiction often delves into 'what if' scenarios. Like what if Shepard made different choices at the very beginning of the game, and how that would have completely changed the course of the story and the relationships with other characters.
One interesting 'Mass Effect OC Fanfiction' could be about an OC (Original Character) who is a biotic with a unique power that she has to keep hidden from the Council. This OC might find herself in the middle of a conspiracy that links back to the Protheans.
Well, in some fanfictions, there might be a story where the synthetic - organic hybrids in Mass Effect are pitted against the pure - machine Terminators. Maybe the Geth, with their evolving intelligence, try to understand and either ally with or combat the Terminators. This creates a whole new dynamic as their motives and methods are so different.