Koco carefully controlled the corrosive potion ball to slowly float into the air, and almost everyone's attention was focused on the dangerous potion ball.

"Zambit, be careful not to let the falling rocks touch this ball of corrosive potion, otherwise you know what the consequences will be. Alfie warned Zambit softly, fearing that her voice would be too loud to interfere with Koco's control of the corrosive agent.

"I'll go~ You're stupid!" Although Zambit has been busy in his hands, he has been listening to the arrangements of several people with his ears pricked up.

When the pungent smell of corrosive potions reached Zambit's nose, he immediately raised his vigilance, and the falling rocks were carefully picked out of the area, leaving a considerable space for the slowly rising balls of corrosive potion.

'A little higher...... This height should be about the same, right?' Koko kept calculating the height of the corrosive potion ball in his mind, and after the potion ball reached a height of about ten meters above the ground, Koko felt that this was already the limit of the rise, and any higher would be beyond the defense range of Zambit, and the potion ball could be smashed by falling rocks from the sky at any time, and it would be a tragedy at that time.

Seeing that the distance was almost up, Koko said softly, "Go!" and the corrosive potion ball immediately flew at high speed in the direction of the trebuchet position.

Koko cleverly used the tactic of flying the corrosive ball sideways at an altitude of about ten meters close to the ground, both to avoid obstacles on the ground and to quickly enter the blind spot of the trebuchet before being hit by falling rocks. Although Koko's tactics take a certain risk, the probability of success is very high, after all, Koko and the others are now on the edge of the trebuchet's blind spot, and the corrosive potion ball can enter the blind zone by flying forward a few dozen meters.

Now it's up to them to see if the corrosive potion ball gets hit by falling rocks before it goes into the blind zone.

"Clever approach. Alfie complimented. Now that the corrosive potion ball is far away from everyone, and its height is extremely low, even if it is hit and exploded by falling rocks, it will not cause any damage to everyone.

Alfi and the others had been planning here for so long, of course the other party would not be unaware, and sure enough, when they saw that the corrosive potion ball was about to enter the blind spot of the trebuchet, a metal object flew out of the opponent's position and crashed into the corrosive potion ball. Apparently this was a targeted attack by the other side.

"Oh, what is that metal object, our tactics are failing!" Barnett exclaimed exaggeratedly, he could see better than anyone else that it was a homing missile.

"Cut~ There are great troll warriors here, and a small tracking missile won't do anything at all. Barnett's timely alert brought Zambit to the sighting missile. After a little calculation, he immediately picked up his spear and slammed a falling rock at high speed in the direction of the tracking missile.

The rockfall that was changed direction appeared unusually accurately on the trajectory of the tracking missile, and in the middle of the tracking missile, which could not dodge, in a fierce explosion, the subsequent corrosive agent ball passed through the smoke produced by the explosion and entered the blind spot of the trebuchet.

"Not bad~ It seems that you have also found a way to deal with the tracking missile. Rebecca gave a rare compliment. In the second level, the Troll Warrior was overwhelmed by two homing missiles from the Colossus.

"That's~ I'm a genius. The praised Zambit's tail immediately went high.

"Don't get complacent too early, the key to the success of the plan is the following. Alfie's expression wasn't so relaxed. Since the other party has discovered the existence of the corrosive potion ball, they will definitely not let their plan come true easily.

Tracking missiles are a thermal weapon that has not appeared before, so as they join the battlefield, the offensive methods of the Mech Legion have also been upgraded?

Seeing that the others didn't seem to notice this, Alfie chose to hide the discovery in order not to shake the morale of the army.

"It's up to me!" Coco's confidence suddenly increased after he managed to escape the catastrophe, at least the plan he had come up with on the spur of the day was feasible.

As soon as Koko raised his hand, the corrosive potion ball that entered the blind spot of the trebuchet immediately changed the direction of its flight and flew high into the air, and at the same time, two homing missiles flew out of the opponent's position again, ready to intercept the potion ball.

"I can't help you now, it's too far away. Zambit sighed. Before reaching the Sanctuary, manpower was exhausted, and now the height and distance of the corrosive potion ball were beyond Zambit's reach.

"It's okay, I've already thought of a countermeasure. After a word of comfort, Koko shook his hand, and the ball of corrosive potion that was about to be hit by the tracking missile immediately exploded, turning into a cloud of corrosion. The tracking missile that plunged into the clouds and mist did not have time to explode, and it was reduced to nothing under the powerful corrosion of the clouds.

"Nice, nice. This is the correct way to open the corrosive agent!" Alfie praised Koco's clever use. In his vision, corrosive agents should be used on the battlefield.

Encouraged by Alfie, Koke's face flashed with excitement, and he became more adept at manipulating the corrosive cloud.

The corrosive agent in the state of the cloud slowly drifted towards the sky, and in the process of rising, the water vapor generated by the previous blizzard magic continued to converge towards the corrosive agent cloud, making this terrifying black-brown cloud continue to expand its sphere of influence.

In the blink of an eye, the cloud of corrosive potion had stretched to a range of thousands of meters, like a huge magic umbrella covering the position, and unexpectedly became the protective umbrella of the fish-man defenders.

The effect of the diluted corrosive agent was not reduced much, and the dense rain of stones fired by the enemy trebuchet entered the cloud and was quickly dissolved by the corrosive agent. Occasionally, a relatively large stone block has been baptized by corrosive clouds, and when it falls, it has become not much larger than a fist, and it will not do any damage to the fish-man defenders at all.

"Almost, isn't it?" Alfie reminded as he looked at the area covered by the corrosive clouds that had risen high in the air. This kind of domineering "alchemy" weapon is better to control the range of use as much as possible. Although this is a different space opened up by Kenobi, Alfie does not dare to guarantee that there will be any unpredictable and bad consequences under the corrosion of the Sanctuary-level corrosive potion.

"Rain!" Koko snorted softly, and the corrosive cloud in the sky immediately rolled over, and the black-brown corrosive rain fell tricklingly, just covering the opponent's trebuchet position.

Dark-brown raindrops fell on the metallic trebuchet and quickly seeped into it, quickly corroding the trebuchet to a mottled surface. After being washed away by the corrosive rain, the previous heroic warriors suppressed the trebuchet troops who could not raise their heads, and began to be corroded and paralyzed one by one. collapsed, and soon became a pile of scrap copper and rotten iron, completely useless.