First of all I want to excurse for mistakes below, I'm not a native english speaker.
About me in brief:
I'm not a very experienced player, I play on s8 and it's my 1st server. I am one of those who tries to use max amount of plunders for a day, and even more with Force plunder cards. As long as I play, I plundered for lots of resources and honor, but also made lots of mistakes, which helped me to make some rules I want to share with you. Hope that would help you not to repeat them.
1. Why we plunder?
Many people think that losses are not worth resources gained. I agree, sometimes you loose much more than gain. But from my experience, skirmishes happen 2-3 times a week, and you plunder much more often. Most of the time people avoid you or you can just attack someone stronger than you with just one unit assigned.
So the main rule in this part - always remember why you plunder. You plunder for honor and resources. Not because you're a cruel maniac or want to kill every army around you. There are many people around with their armies, and you are alone in this business, you could probably get some help from friends to protect yourself, but noone will help you to attack.
Try to avoid useless losses.
2. Whom we plunder?
Everyone. It's simple. Do not afraid of plundering, and don't just plunder guys 10 levels lower than you. High lvl guys wouldn't be able to do anything to you, unless they know your home address
Just avoid fights with them and plunder with 1 unit assigned when they are offline or afk. Some people don't turn off their computers, but you can figure out their timezone and attack at unconvenient time, which is late night, world boss or clash of gods.
Know your enemy. It's really important. Make some notes on sticky paper with name, coords and a brief comment. Many players almost never change formations - easy to kill, just note their usual formation and counter it. Many people are too greedy to use market and they have huge amounts of 1-2 types of resources, note that too. Also some players always defends. Just try to outlevel them, you can easily hold them in 5-6 levels below, just use units you don't need, for example tier2 left after wb or clash, which you would dismiss anyway to free your population for tier3 or tier4 units.
Give them a break! Do not plunder all the time same persons. Farmers usually use their fields for 2 years and leaving them unsown for the 3rd year. Do the same, give your lower level targets 2-3 days break to gather armies and build structures/learn tech, otherwise you will outlevel them fast and won't have more chances to plunder.
3. How to protect yourself against plunders?
Don't keep large amounts of resouces for long time or while you are afk/off. I can't tell you which amount is large, depends on your level, but remember one simple thing: there is nothing you can't build or learn after 12 dungeon runs! How to do that? First of all, you need to get used to run a single dungeon in less than 10 minutes. It's not hard as it seems, just need practice. Then you need to ask a friend of the same level to attack you with 1 unit and def it - you'll get 30 minutes of peace state. It's just enough to run 3 dungeons. Repeat it and you will have time for 6 dungs. How to do 12 dungeons in a row? Just atart your dung run at 22.30-22.40 pdt and continue runs after server refresh (of course, you need 6 dungeon keys prepared for it).
In brief - if you don't have resources, noone would plunder you. You may not afraid of high level avengers or knights in shining armors defending their low lvl friends - they will get bored after 3-4 times of useless attacks.
4. When we plunder?
As it was told before, good time is during clashes - people stuck there won't be able to set defence or spend resources. Also good time is when you know that someone is trying to build smth like tech tower. 90+ players also have large amounts of resources before super units double exchange times.
And of course, our little red and orange friends:
telling us that someone is running dungeons, and soon be prepared to share with us his resources, give him an hour to finish it and take what you need more than him
Bad times to plunder - just after wb, if someone participates - he would probably have enough silver to acoomplish something he needs with res cards bought for silver. After arena bets - same reason. After recruiting super units double exchange times, if you are higher than 90.
5. How do we attack?
Sometimes we need to fight. I'm not telling that it happens often and actually it's not a part of this guide, but I still want to share some thoughts.
First of all, it doesn't matter you win or loose. You don't need to win a certain battle, you need to win the war. Important things to remember - one average tier3 unit costs 6 tier2 units, one tier4 1-population unit costs 10 tier3 units. So, if you are attacking with full tier2 units and just killing one stack of tier4, you're even. But it's still bad result.
When your opponent is weaker than you, it's not a problem for you to deal with him, and probably he won't accept the challenge. But what to do with much stronger guys? Just use waves with lower lvl tier units, and, if you know that your tanks won't hold more than one hit of enemy archers or casters, use 1 unit there just to take one shot and let your casters make one more turn, i.e. if someone uses left feint with tramps and barks (very often was that on 60-80 levels range), use this formation:
You will loose, but your army would cost just a half of one stack of your enemy, and you would probably kill 1,5 barks and 1 tramp stack.
6. What you should never do?
Never setup your revenge. You got plundered by lower level and pissed up because of that? Just forget it. You would probably get nothing from him if you attack at once. Had been trying to keep resources for something important and was plundered multiple times by someone? Think of it - if you counterattack, in best case you would get nothing, in worst - you will loose not only res, but also your army.
Always be calm and never forget - it's just a game.
Good luck everyone and welcome, Solari, s8 251.254