So What Is Raiding Exactly?
When you put your mouse cursor over another players castle you will see a bunch of different icons. The one that looks like a money bag is the icon you click when you want to Raid that particular person's castle.
After clicking the Raid icon you will choose which units and how many of each unit you want to send to battle. Once you send your units you will see a timer letting you know how long it will take your forces to reach the enemy castle.
Note: The further away the other castle is, the longer the trip will be for your units. The same goes for the return trip of your forces.
Once your forces reach the enemy, they will engage in battle. If the total Offense of your force greatly exceeds the Defense of the enemy forces you will successfully Raid your opponent. Both sides will usually lose units if there is a substantial defending force.
You can store up to 10 total Raid attempts at any one time and you will receive a new Raid Attempt every 2.5 Hours.
What Is So Great About Raiding?
When you raid another player you can take as many resources as your army can carry (Total Carrying Capacity of attacking army) up to a maximum of 50% of that player's total resources. You will also receive experience points (The more units you kill the more experience you will gain). The best targets are those without much of a Defensive army and a large amount of resources. High level inactive players tend to be the best targets as they have no Defense and a large amount of stored resources.
How Can I Raid Others Effectively and Efficiently?
I wasn't very good at raiding when I first started playing and I lost a lot of units for no reason. Here are the 3 best steps to Raiding another player efficiently and effectively, with minimal unit losses.
Step #1. Spying - Before any raid attempt you must first scout out your target. If you haven't checked it out, I strongly suggest you read this
Spying Guide first. Spying will save you time, resources and units. I guarantee it!
If you have a decent army size I would suggest Spying on players a little bit below your own Castle level. For example, if you're level 20 try to Spy on Level 17-19 players. I'll reiterate that inactive players are the best targets especially when they are around your target level (Usually the higher the level of the player, the more resources they will have stored).
Step #2. Choosing A Target- The perfect Raiding target is A. Close To Your Castle, B. Has No Defense, and C. Has A Lot Of Stored Resources. If you cannot find a perfect target, make sure the target at least has enough resources to even make the Raid worthwhile. Also note that the location may not matter if you won't be playing or defending at that time.
Step #3. Sending Your Army- If your target has a lot of Defensive units it is usually better to find another target. However, if you must attack them, make sure to send a lot more of an Offensive force then they can defend against. If you do not send a strong enough army you will basically be wiped out.
Finally, make sure your attacking army has enough Carrying Capacity to take 50% of the enemy's total stored resources. In the example on the right I saw that I needed at least 7,075 Carrying Capacity to take the maximum amount of resources. Unfortunately I only had a large enough army to carry 4,440 resources. I am currently building up my army so this will not happen anymore.
Conclusion
You should use this article as a guideline when Raiding other players, but definitely use your own judgement as well. Make use of your ten Raid attempts each day to obtain extra resources for yourself.
As you continue building your army you will be able to Raid multiple players at once. The better you get at Raiding, the faster your castle will grow and the stronger you will become. Good Luck Raiding!
Thanks for reading and feel free to comment below with any questions, concerns or insight!
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So I tried to play Stormfall again today and the screen showed up this time. It took about 5 minutes, but the game finally did load for me and it now works fine. I assume there were just temporary issues for some players, but they seem to have been fixed now.
I just wanted to give Stormfall players some advice during the The Uninvited Guest event. It is likely that many active Stormfall players will be taking part in the Holiday Event Quest. The majority of those players will complete the event and will be rewarded with 5x Dragons and 20x Wyverns. That is around 35,000 total Offensive points, equal to almost 600 (not upgraded) Paladins. 
You will have 13 days to collect 80 Christmas items for Oberon. These items can be found scattered around your castle, just as the resource tributes are. The items to look for are Christmas Trees, Warrior Penguins and Christmas Treasure Boxes..png)
Also just another note; Stormfall also released the Winter Fortress that can be purchased from the Black Market if you have enough Sapphire. Just go the the Black Market, click on fortresses and you will see Frostbite for 2000 Sapphire. It will give your castle a 1500+ Defensive Bonus as well as change it's appearance.
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You will receive a new Scroll each day, but only for the very next Lost Art(s) that you have not yet unlocked. For example, if you have just unlocked the Lost Art of Composite Bow you will be given a scroll for Bran's Seal each day.
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You can check Scroll trade offers in the Market and if no trade is available you can create your own. People will generally only trade if they are getting similar or rarer Scrolls in the trade. You won't be able to get a Horsemanship scroll by trading a Divine Blades Scroll. It is possible to get lucky with a favorable trade offer such as this, but it is not likely.
I wasn't very good at raiding when I first started playing and I lost a lot of units for no reason. Here are the 3 best steps to Raiding another player efficiently and effectively, with minimal unit losses.
Step #2. Choosing A Target- The perfect Raiding target is A. Close To Your Castle, B. Has No Defense, and C. Has A Lot Of Stored Resources. If you cannot find a perfect target, make sure the target at least has enough resources to even make the Raid worthwhile. Also note that the location may not matter if you won't be playing or defending at that time. 
So I decided to take a risk and see how far I high I could go defending Battlegrounds. I also had to complete these for quests and I had a lot of archers and dwarves to spare...
