in the meantime while I think up some cats, I'll go ahead and jot down some lore here.

FalconClan

FalconClan is a quiet, cold Clan, but ask for assistance in battle, and they will fight fiercer than the birds they are named for, although alliances made with them are typically only based upon mutual respect. They make their home in the foothills of the mountains, and their camp, hidden in the rocky outcroppings, is a close-held secret.

Strengths

FalconClan cats pride themselves on their ferocity in battle and strategical skills. They claim that they are descended from the powerful "cougars" that used to call their territory home, going so far as to stripping their leaders' birth prefix and replacing it with "Cougar" upon their return from their nine lives ceremony. Although they are not burly or plump, they are large cats, their pelts rippling with muscle. In battle they use their strength, speed, and agility to gain an advantage over their opponents.

Weaknesses

Believing the other Clans to be deceptive, FalconClan does not trust easily. Their warriors are discouraged from relationships with cats outside their own Clan, making them prideful of their own Clan and disrespectful towards most other cats. They also do not have a close relationship with StarClan, believing themselves to be the sources of their strength, not spirits of ancestors. Their medicine cats are therefore not apt at seeing signs or omens, their rare communications with StarClan only being in dreams or during half-moon meetings.

FalconClan cats, not having much water on their territory aside from a cold mountain stream, are not good swimmers, and they do not have much undergrowth on their territory either, giving them a disadvantage on battlefields with water or close quarters.

there we go! I might write more on their cultures/traditions later, for now this is just a quick overview

IvyClan 

Leader: Everstar (Evergreen as warrior maybe?)  - dark gray-brown she-cat and dark green eyes

Territory is mostly forest, with a lot of tall trees and dangers such as foxes, badgers, and a wild boar every once in a few moons. IvyClan is known to be resilient and intuitive, however can sometimes hold to a belief to a fault (like thinking a certain villainous cat is good for a long time before realizing, or not accepting kittypets as easily). However they are also known to sneak around quite often into other Clans or unexplored territory.

IvyClan cats are excellent climbers, using the trees as a means of an attack from above. They are nimble and are great at making their way through forests. However, they are not as good at direct attacks of strength, preferring to use sneak attacks and strategies than straight up battles. IvyClan cats are also bad at fighting in the open. Their medicine cats are known to have the most variety of herbs, however they also carry poisonous herbs as a means of defense or possible plan.

If I'm honest, I'd rather change RabbitClan to something else, if thats fine. RainClan, I was thinking?

MossClan

MossClan inhabits a mossy forest territory, with many streams and ponds. Due to the abundance of water, many MossClan cats learn to swim from a young age and eat fish when necessary. They make their camp in a grassy clearing surrounded by huge trees. The leaders’s den is under a tall stump, upon which they make announcements to the Clan. The rest of the dens are spread out around the camp, mostly in bushes and under fallen logs. The only exception is the nursery, hidden in an easily guarded tree hollow accessible one cat at a time. A fast creek that flows through the camp provides water for the Clan, and ends in a small pool in the medicine cat den under a fallen log.

Strengths

MossClan is a curious and fiercely loyal Clan. Clanmates care greatly for one another, and they are a very accepting Clan overall, giving cats injured in battle or disabled from birth many choices in their path forward, and not forcing them to retire early or become medicine cats if they do not choose that route. 

Weaknesses

MossClan cats do not easily trust the other Clans. They are often skittish around strangers and protect their borders furiously. They are not always welcoming to non-Clanborn cats, accepting them in other Clans but not often in their own, due to a very tight bond between cats raised in the Clan.

Hi, are we allowed to post Clans other than the CollabClans here? I'm currently working on NimbusClan and I'd love to share but it seems that people have stopped posting other Clans and I don't want to make things too confusing <3