You can find the Berserker’s statistics and a brief description here. If you are already familiar with him, then continue reading.

The Berserker is a unit often overlooked by most players. Its low block percentage (25% front. 12% side) is widely viewed as underpowered when combined with his zero armor. But when used properly the Berserker is a very effective unit capable of dealing high amounts of damage, and stunning your enemies.

The Basics
The most important thing to know about the Berserker is that when he attacks, and successfully hits a unit, they are “stunned”. This means that one turn of wait is added to their current wait time. For example, if the Berserker hits a cleric who had no turns of wait, he now has one turn of wait. This can be seen visually through the series of screenshots below:


(click to view in full size)

Another important fact to remember about the Berserker is that if he attacks a unit, and his attack is blocked, they are not affected by his stun.

Usage
The Berserker is not a unit that should typically be sent out on the frontlines, since he doesn’t have the greatest survivability. Instead, its stun effect can be effectively utilized as a defense mechanism. Let’s say that you are using a Berserker in your turtle and a Mud Golem has just attacked your Stone Golem, removing his focused armor enhancing ability. Normally, you would have two turns to take care of the mud golem before he is able to attack again. But if you attack the mud golem with the Berserker, the mud golem gains an additional turn of wait and also takes 22 damage, so long as it is not under the armor enhancing effects of the stone golem(in which case it would take 15 damage).

Additionally, since your opponent’s mud golem would now have three turns of wait, and your Berserker 1, you will be able to attack your opponent's mud golem again before it is able to move, adding another turn to his wait, and even once more before it is capable of moving again. And considering the Berserker does 22 damage each hit, assuming your opponent does not heal, and/or the mud Golem is not under the armor enhancing effects of a Stone Golem, he will have dealt 66 damage, killing your opponents Mud Golem, with only the Berserker having attacked it. This is illustrated through the series of screenshots below:


(click to view in full size)

Now while this is just an example designed to show you the power and utility of the Berserker, I think it is clear that if kept alive the Berserker can be a very powerful unit to have on your team, and one that demands the respect of your opponent. For instance, the Berserker can be used as a means of deterrence. If your opponent is wise and knows the danger of sending a unit in to attack an area where you have a Berserker, he will probably try to kill your Berserker before moving in. This means that if you keep your Berserker alive by means of Cleric heals, Stone Golem armor, or even blocking line of sight to him, then you will prevent an opponent from making certain attack moves. This can provide you with precious time to put yourself in a better position to win your match, while also keeping your opponent out of a certain area.

Here’s a list of the Pro's and Con's of the Berserker to help you get a better overall concept of it as a unit:

Pros:

• "Stun" effect(+1 turn of wait added with each successful hit)
• Deals a solid amount of damage(22)
• Low recovery time(1 turn)

Cons:

• No armor
• Low block percentage(25% front. 12% side)
• Does not step aside for friendly units to pass.

As you can see the Berserker is a unit that requires a little extra effort to keep alive, but if you know what you're doing and are capable of doing so, then he is a very powerful unit just waiting to be mastered. I encourage you to test out the Berserker and see for yourself what a nice addition it can be to your formation.