A message came to his mind.

"Level 4 Lingyuan: Lingyuan 4950"

"Level 4 source: source 5050"

"Start promotion"

"Muscles begin to strengthen and strength increases"

"Basic strength increased to 1000 Jin"

"Defence increased by 100 Jin"

"Increased physical fitness, speed, vision and hearing"

"Vital capacity increased, basic breath holding time prolonged by one minute"

“……”

"Promotion completed"

"Level 5 Lingyuan: Lingyuan 070"

"Talent: enhanced care"

"Basic enhancement: strong lung type I (prolonged breath holding time for two minutes)"

"Basic strengthening: muscle enhancement type IV (additional strength of 900 kg)"

"Special skills: peeping Rune (defect), tooth of gluttony (left), spider walking"

"Basic enhancement options: strong lung type I, muscle type IV, teeth and bladder"

"Begin to understand the art of spiritual source"

"The art of spiritual source: Iron muscle and devil muscle. You can choose one of them to understand and master"

In my mind, a large number of messages emerge continuously. There are four basic strengthening options: lungs, muscles, teeth and bladder.

Su Li needs more powerful strength to fight the terrible undead monster in front of him. Strengthening the lungs can only prolong the breath holding time. Although the specific effect of strengthening the teeth and bladder is unknown, Su Li guesses that it has nothing to do with strength. Now the only choice to improve his combat effectiveness is to continue to strengthen his muscles.

His muscles have been strengthened four times. Although it has brought him unprecedented strength, it also makes Su Li afraid that other parts of his body can't bear such a powerful force outbreak. Therefore, this time, he had already thought about it and decided not to strengthen his muscles for the time being, but to strengthen other parts of his body.

But I don't want to encounter this terrible undead now. There is no other choice between life and death. I have to first improve the combat power as much as possible, and others can't even save my life until I kill the undead, otherwise it's meaningless to think more, not to mention he still has a chance to strengthen.

As he made his choice, immediately, all his muscles were wriggling, as if all of a sudden came alive.

"The muscles began to strengthen, and the muscle increasing type IV was promoted to muscle increasing type V, gaining an additional muscle strength of 1200 kg"

"After five times of strengthening, the muscle has been strengthened to the current level and the limit that the body can bear. It can't be strengthened any more. Its basic strengthening can't exceed the current level for several times."

Sensing the message in his mind, Su Li immediately understood that there was a limit to the number of basic strengthening times, which could not exceed the current level and the limit that his body could bear. Now he is a level 5 spiritual source, which means that his muscles can only be strengthened five times at most. If he wants to continue to strengthen his muscles next time, he can only improve his level again.

"It seems that everything I thought before was too much. This basic strengthening choice has long limited the limit number of strengthening. I'm still considering whether excessive muscle strengthening will make other parts of the body unbearable. As a result, I'm worried in vain." Su Li was relieved and relieved.

"There was no such prompt for the fourth muscle strengthening at level 4, but it appeared this time. It seems that the last fourth muscle strengthening has not reached the limit that the body can bear."

According to this guess, Su Li chose to strengthen a certain part of the body. There should be two restrictions. One is that the strengthening times of the same part cannot exceed the current level. The second limit is the bearing capacity of the body. If the strengthening of a certain part reaches the limit that the body can bear, he will also be warned to limit its continuous strengthening.

These two restrictions are not the same. For example, after hard training, a person's muscles have been particularly developed and far more than ordinary people before becoming a spiritual source. Then, when he becomes a level 5 spiritual source, his muscles may have reached the limit only after four times of strengthening, and he can't strengthen his muscles for the fifth time.

When Su Li was an ordinary person, he didn't have such far superior muscles, so his current limit of muscle strengthening times is just consistent with the grade.

A new message appeared in Su Li's mind again.

"The ability of talent 'enhanced care' is triggered. You can get an additional opportunity to strengthen. You can select strong lung type I, muscle type IV, heart and stomach"

"Finally the choice of heart." Su Li was delighted.

Sensing the continuous messages in his mind, the dead in front of him had rushed to him.

Su Li had no time to carefully sense the message and made a second choice. He shouted angrily, grabbed the machete in his hands and waved it head-on.

With his promotion to level 5 Lingyuan, his basic strength has reached 1000 kg. Muscle increasing type V can increase his strength by 1200 kg. His strongest strength has soared to 2200 kg.

Compared with the previous level 4, his strength was increased by 500 kg.

Not only strength, speed, physical strength, reaction and defense have been improved. The muscle defense ability has been increased from 500 kg to 600 kg, which can resist and offset more powerful attacks.

With Su Li's angry drink, the machete cut out with a strong wind, and the speed of the hand was faster than just now.

The undead stretched out his mutated claws and used them to resist without fear. He didn't think Su Li's knife was a false move. He had already launched the "spider walk", walked around to the other side, and the "gluttony tooth" of his left hand blasted out.

With a bang, the undead launched a head ejection attack at the same moment. As a result, Su Li's "tooth of gluttony" exploded on the forehead of the undead.

Four sharp fangs pierced the dead's head.

Fresh blood splashed out, the dead roared fiercely in his mouth and retreated violently like an electric shock. The ejected head was busy shrinking back and opened the distance between Su Li. His face became more and more pale. There were four more blood holes on his forehead, constantly emitting blood, and there was a faint white substance in it.

Su Li did not immediately pursue, but took advantage of an additional strengthening opportunity he just got and decisively chose to strengthen his heart.

Suli breathed out secretly. He had long found that his heart beat violently during the battle, and he felt unsustainable. However, there had never been a choice to strengthen his heart. This time, it finally came out.

"The heart began to strengthen and obtained super heart type I. The physical strength doubled. The duration of the strongest strength burst was two minutes. The duration of the super heart increased by three minutes and the additional strength increased by 100 kg."

Su Li sensed the change of his heart. He just felt that his heart was changing into a fiery fireball, releasing powerful energy and filling his whole body. His physical strength was becoming more and more abundant, and his body was becoming stronger and stronger.