Although the breath exhalation of dragons is a physiological behavior, it is actually a natural magical ability. There is a thing called "basic blood vessel" in their physiological structure. It is a unique organ of dragons. It is an extremely complex blood vessel. It looks like something similar to a rubber water pipe. It has a muscular outer layer that can pump blood like a heart.

    This outer layer allows the basal blood vessels to contract and expand rapidly from one end to the other, pushing blood flow to the upper stomach.

    That''s the source of dragon spitting weapons.

    Dragons rely on the heart to produce blood flow that gives them spitting weapons and other abilities, while basal blood vessels are responsible for directing energy rich blood from the heart to the upper stomach of their muscle stomach.

    Therefore, the "spitting weapon" that humans are used to is actually a wrong name, because those fire, poison, acid, or other substances are released from the upper stomach rather than the lungs.

    More precisely, the energy flow is vomiting rather than exhaling.

    Although Caesar has the same physiological structure as other black dragons, it is a pity that his heart can not produce elemental magic like the real dragon, so that breathing is impossible for him.

    Therefore, it seems that the majestic dragon breath has become a heart disease of Caesar.

    However, this deep sleep changed his physiology. In Caesar''s body, new organs were generated. In the upper layer of his throat, there were three cystic organs that could secrete special liquid. Each cystic cavity had a tube connected with the valve and the organs. The three conduits finally converged into one. The outlet was roughly located in the upper jaw of his mouth.

    The supporting muscle tissue allows Caesar to freely control the new organs - just eject the liquid in the capsule. For some protective measures, he can''t inhale air into the capsule anyway.

    "Well, strange feeling."

    After waking up, Caesar obviously felt the difference of his body and couldn''t help scratching his throat. His throat itched, as if something was stuck there.

    When he opened his mouth, the itching became stronger. Caesar clearly felt that there were three "switches" in his throat that could be controlled by himself, and his body was ready to move.

    Caesar controlled the strength of the muscle tissue in his body and decided to try the effect of the implanted spitting weapon. When he opened the valve of the first capsule and contracted the muscle, a viscous liquid immediately gushed out of the laryngeal cavity along the catheter.

    The next moment, the black dragon spewed out a flame.

    When Caesar reacted, he immediately closed the valve.

    The seven meter long black dragon covered his mouth, bowed his waist, turned his head like a thief and looked around. If others knew that the black dragon could emit fire, they would be shocked immediately. Once the news spread, he would immediately attract onlookers.

    Fortunately, bound by the oath of God, the orcs were not afraid that Caesar would not fulfill his promise. After leaving the specific location of the clan, they hurried back to the tribe. The two young dragons had already left. Now they don''t know where they are - this area is now empty.

    "How can I spit out a flame? It''s unscientific."

    Caesar muttered twice and decided to try again. This time, he stared at the front of his kiss and remained focused. The strengthened keen nerve enabled him to distinguish those fleeting pictures:

    After he opened his mouth, the viscous liquid spewed out from his mouth. I don''t know what kind of liquid it is. It burns immediately after meeting the air to form a high-temperature flame.

    To outsiders, it''s like this black dragon spitting fire.

    Caesar burned a small clump of trees to ashes. He tried to control the amount and form of liquid sprayed at will under the control of muscle tissue; In other words, he can spray a series of flames such as flame jet, fireball, fan-shaped flame and so on.

    "Er..."

    Two minutes later, looking at the raging fire in front of him, Caesar belched, the cystic muscles twitched a few times, and no fresh liquid gushed out.

    In other words, the stock of flammable liquid in the capsule can maintain its continuous spitting flame within two minutes. The combustion efficiency of unknown liquid is very high and quite viscous. Some droplets will contaminate the surface of the target for continuous combustion.

    Although two minutes is very short, how can a dragon breathe continuously in battle? Caesar is quite satisfied that it can last so long.

    And don''t forget that there is more than one capsule in his newly generated organ.

    He took a short rest. When the muscle tissue matched with the capsule was no longer sour and soft, he opened his mouth and opened the second valve switch.

    This time, Caesar obviously felt the coolness in his throat. The alternating feeling of cold and heat made him sneeze and a stream of white gas was sprayed out.

    The white gas dissipated unexpectedly fast. When Caesar didn''t know why, he found that the burning coke tree in front was frozen and turned into a magnificent art.

    Caesar immediately approached a few steps and tentatively held the frozen coke with his claws. The low temperature of the things in his hand made Caesar feel a slight pain in his right claw. With a slight pinch, the coke turned into countless ice slag in the sound of clicking.

    "Great."

    He couldn''t help but tut Tut''s admiration. Such a temperature and freezing speed were stronger than any kind of refrigerant he knew on the earth, and the form of expression was comparable to the fantastic freezing magic.

    "How can I feel familiar..."

    Staring at the ice fragments all over the ground, he couldn''t help but show a picture of a huge black dragon yelling "absolute frozen gas" and then exhaling in the face of a group of human adventurers

    Stop!

    Caesar shook his head hard, a little embarrassed. God knows where the name of this shame move full of middle two breath came from.

    The liquid in the third bag didn''t surprise Caesar so much, but it finally gave him a spitting weapon that could be exposed to the outside world. It was acid, which could quickly corrode the exposed objects.

    Caesar had seen the strong acid vomit of Garon and blackhia, so he couldn''t help but make a simple comparison. His acid looks a little inferior to the young dragons in strength, but it also has an advantage in comparison, that is, the amount is large and the tube is full. At least the young black dragons can''t spit strong acid continuously for two minutes - it will spit out their gastric juice.

    After being familiar with spitting weapons, Caesar was excited for a while, but he realized the potential danger.

    He is a cautious man (Dragon). Although he does not know the principle on which the newly generated organs can generate and store these highly dangerous liquids, he knows that other organs of his body have not changed.

    Therefore, once this key organ is damaged, the liquid is likely to leak back into the body. In that case, there is a high probability that it will directly cause his death.

    Caesar touched his neck. Fortunately, the new organs grew in the upper layer of the throat and were in the neck covered by his chin. This part was within the scope of his key protection. Moreover, if he did not raise his head deliberately, it would be difficult to hurt this position in general combat.

    "But it would be safer to have a large iron chin," thought Caesar, touching the lower edge of his kiss.