Here is an idea for a competition.

Call it the purge:

1st freeze all incoming A&A's (Assailants and Apostates) and stop the countdown for them leaving

2nd Start a competition that requires total elimination of all A&A's in their kingdom

3rd reward for the top 10 places of each league that completely removes all A&A's from their kingdom first.

4th reward top 3 kingdoms with % increase against A&A's for the next 3 days or level 7 rss locations.

This is a KvK with 5 to 10 kingdoms or per league.

Points for A&A kills

If a kingdom wins, reward all players in the winning Kingdoms with a personal achievements tab as well as an order tab

Options to make it more interesting:

Allow each player who participates to be allowed to select a place where one Assailant and one Apostate can be placed in an opposing kingdoms.

Do rankings based on points per A&A killed with the time still going so smart players will attack the A&A's will least amount of time first to gain more A&A kills.