Max plunder is the bonus you get from your allies. The way you know I your at max plunder is when you hire another Allie you do not get anymore, you should have as much money in allies as your next land and when you buy the next land get another ally to get more of a bonus.
well he tried it's straight to the point and understandable but i know a while back Tmh made a great forum all about Allies and if you do need this stuff I would suggest finding it
He wrong u dnt need as much as ur nxt land cuz my next land is 30bil and all I need is a 7.5bil ally I just choose to hire the 31bil one lol and my alts next land is 900mil he needs a 2bil ally this forum isn't correct