I'm not sure who the main characters are as I haven't read it. But it could be a brave echidna warrior who leads his troops into battle. Maybe he has some special abilities or a strong sense of honor.
One common theme is loyalty. Echidna characters often show great loyalty to their clans or comrades in the fanfictions. For example, they might fight to the death to protect their fellow echidnas.
Well, in general, a fanfic about 'echidna wars ouroboros' might be centered around the idea of a battle or conflict involving echidnas. The ouroboros aspect could add a symbolic or mythological element, perhaps representing an eternal cycle within the context of the war. It could also be a creative take on some pre - existing fictional universe where echidnas exist and are engaged in some sort of struggle related to the ouroboros concept.
Since it's a fanfic, it could be that the main characters are various echidnas. There might be a heroic echidna leading the fight against an opposing group. Maybe there's an echidna with special powers related to the ouroboros. Or it could be that there are echidna elders who are trying to bring peace in the midst of the war and are the central figures in the story.
Since it's a fanfic, it's likely created by a fan with a very specific vision. The echidnas might be characters with their own abilities and motives in the war. The ouroboros could bring in elements of mystery and cyclical nature to the story. And 'vore' could be used to create a sense of danger or dominance. However, without actually reading the fanfic, it's hard to say exactly what it's about. It could also be a very creative and out - of - the - box take on these concepts, perhaps mixing different mythologies and fictional ideas together.
There are also the mysterious and powerful seer echidnas. Their ability to foresee the future and their knowledge of ancient magic make them very interesting characters in fanfics. They can be both allies and a source of conflict as others may try to use or control their powers.
A brave Echidna warrior named Thorne could be a main character. He's known for his incredible strength and unwavering loyalty to his tribe. And for the Lamia side, there could be a clever Lamia named Lyra. She has the ability to charm her enemies, which comes in handy during battles.
I'm not entirely sure which specific 'echidna wars last boss' in the fanfic you're referring to. There could be many different interpretations and stories. It might be a very unique creation within that particular fanfic's universe. Maybe it has some special powers or a complex backstory that is specific to the author's vision.