I want a faction/clan/guild plugin where you can make your own guild as usual.
When starting the guild it's just a group, you can add members, change ranks, but you can't claim a place yet.
When you have specific amount of members (set in a config) you can start claiming and.
All "Factionclaimed" places have to be at the same place, so you can increase the size of your claim, but can't get another.

In your first claim you have to set a schematic build of a guildhall (inspired by Superguilds, but this one sadly isn't working in 1.14). This guildhall has a wool block in it for an event I will speak about later. The guildhall can be leveled up with ressources to increase the memberlimit and the possible size for the claim.
Other buildings you can place are a guild bank (can hold money for the members and give out interest, more interest with increased bank level), a guild vault (can hold items, can hold more items with increased level) and a temple/statue (Enables buffs to be activated that members around the guild leader receive, higher level = more/stronger buffs). All of this buildings need ressources and money (with economy) to be upgraded.
Guilds can start/become alliances (No PvP between alliances, alliance members can receive buffs from the leaders of the allied guilds), patnerships (as alliance, but can use the vault and bank and claims of the other guild), and enemies. Alliances and patnerships need to be accepted by both guilds, enemies can come from a declaration by one side and there is no need for the other guild to accept.

When guilds are enemies they can declare war on their enemy. If war is declared a the other guild is notified and a timer of 24h (configurable) is started. When the timer ends a time of 1h starts where the claims of the guilds are unprotected from the war opponent. If one guild manages to destroy the wool block of the other, the war ends and the guild has the ability to take items and money out of the guilds bank and vault. They also get to loot chests and everything in the guilds claim for some time.

Thats the plan for now. If possible I would also like to create something like a territory wars with Worldguard regions. There are specific regions that are protected and that can't be build in. In the middle of this regions is a field. When territory wars starts pvp is allowed for alliances and partnerships for an hour.
In this hour a war around the regions is started. Any guild that manages to have more members on the field of a region than any other guild for 10 seconds "claims" the region. If the region is claimed by a guild at the end of the hour the territory belongs to this guild. There will be regenerating mines there or something like that, that the guild is then allowed to use.
Mines will be made with another plugin, so thats not part off the faction plugin, just them getting the region and a permission on the region would be needed.