Karou prepared several common jutsus for his soldiers ... starting with fire.
At this time Karou decided to learn the basics of each element's jutsu.
- First I will teach this jutsu pay attention. Fire style. Jutsu small flames! - Karou executed 6 simple hand seals, from the air dozens of fireballs appeared.
The fireballs flew at random and crashed into a training dummy, the dummy was hit from several different directions, that jutsu for Karou was very weak, the fireballs didn't do much damage, his evolution was much more useful. But for multiple enemies it was a good thing.
The men watching that technique felt very happy, a magician-like technique was incredibly expensive, one with so much power was even more, they were ecstatic with so much power.
Karou then taught fire users how to use jutsu, the correct way and everything, to learn this jutsu Karou took a few minutes without the need for a clone, but for these men it would take hours or even days to create just a small ball of fire
Karou then moved on to the next element, he handed the staff a meter and a half meter to the men.
"Earth style." Weapon creation! - Karou executed a seal and hit one side of the stick on the ground, a pile of earth joined the stick, the pile grew to the shape of a gigantic ball.
Karou seemed to be holding a large war hammer, with all his strength he hit the ground, the shock opened a crater a few meters in the ground. The sticks were made with Niobium catalysts.
- With a lot of training you will be able to create any weapon with this jutsu, you will be able to modify its forms, but at that moment just use the round shape to train your bodies to support the weight.
Passing to the wind element, Karou handed daggers and knives to all men.
- The strong element of the wind element is its cutting power, your training will be different, you should use the Chakra to improve the weapon's edge, making it much sharper, after learning the basics they started using swords.
Karou drew his own sword and injected Chakra into it, getting close to the wall created by Lin he struck with little force, like butter the sword cut the wall easily. Karou then jumped back and cut through the empty air. A practically invisible wind blade finished cutting through the wall completely.
The next element was water.
- Water element! Bubble water jutsu. - Karou executed dozens of hand stamps for this jutsu. A water bubble of almost two meters appeared. - This jutsu can be used in several ways, it can be used for protection, for traps or even to be the water supply for other jutsus.
Karou kept the water bubble at his side, a clone attacked him with a punch, the bubble protected Karou and started to envelop the clone completely, after a few seconds the Clone drowned and melted into smoke.
- Everyone can now train diligently! The first to master your jutsu will receive a more powerful jutsu and may be the leader of their own squad!
Karou would create a simple 4-man squad system, with 1 leader per squad.
- Now I will teach the strength and weakness of each element! - Karou made a drawing on the ground where he represented the 5 elements of basic Chakra, he then drew lines between them. - The fire is strong against the wind. The wind is strong against the lightning. Lightning is strong against earth and water is strong against fire. If two people have the same level of strength what will decide the victory will be the element possessed. Do you understand?

Karou saw hundreds of confused faces, who looked at Karou in disbelief, almost as if he had said blasphemy.
- Sir, in the empire of strong wind. The wind element is considered to be the most powerful element, everyone is taught this. - Lin said very quietly in Karou's ear.
- Ahm? I see ... I have a plan.
Karou created a clone of himself, he and his clone performed different hand seals.
- Fire style. Fire ball jutsu! - Original Karou performed his most powerful fire jutsu.
- Water style. Bubble of water! - The clone just used the water bubble jutsu which was much lower, when the two were shocked everyone was surprised.
- Did the jutsu just cancel?
The fireball's power was far superior, yet he managed to defend himself with just a bubble, for everyone this was surreal.
- Do you believe me now? All elements have their strengths and weaknesses, you just have to find the best way to use them.
Everyone nodded in agreement and started to analyze Karou's drawing, after some time they started their own training, Karou also started his training.
Karou took several bladders and filled them with water, so he started to move his Chakra, turning the Chakra quickly in one direction he felt the water spin, then with an impulse he spun the water in both directions and popped the balloon.
- At first! - Karou made his decision, he would learn Rasengan first, rasengan had a surreal destructive power, in addition to having hundreds of different combinations. The Rasengan's only problem was its high Chakra cost, which Karou now had left over.
To Karou's surprise, he had managed to complete the first stage of jutsu easily, he already had great Chakra control, he also already knew the entire learning process.
Now Karou took an air balloon, before he drew a small circle on the palm of his hand in order to concentrate the Chakra in just one place. Karou then returned to training, this time it was much more complicated. No matter what you did, it wasn't a trick like the first step. The second stage depended on concentration and effort.
So Karou spent the rest of the day trying to pop balloons ...