Couldn't you put a guild token or decoration for being in the top 15+?
possibilities to buy with token
- guild slot x1
- guild slot x2
- guild slot x5
- throne of king (will be removed from the guild if they lose rank 15+)
- Badge for all members (will be removed from players if they drop from rank 15)
- guild tokens for PvP
(guild membership)
- guild name title in different colors

(None of this is for personal use since it affects everyone if they lose rank as a guild except for the decoration spaces, they are expensive and you do not help us since they cost too much in the store)


1 token = 1 week in top 15+