After testing, the damage of the Howling skill will be much higher than that of Bloodthirsty, plus they have found a safe area to dodge the tentacle attack, so Su Yu did not arrange for a person to deliberately eat the damage of the Howling Skill, so as to avoid the Bloodthirsty skill.

And most importantly, Su Yu found that after using the Bloodthirsty Skill, the Deep Sea Monster would fall into a state of weakness for a short time, although it was only about ten seconds, but in these ten seconds, all the damage it took would be doubled, and the critical strike rate of the damage they hit on it would also increase.

Critical hits here can also be doubled!

As long as they cherish these ten seconds and store all their burst skills in these ten seconds, then the damage they deal in these ten seconds is enough to cover the damage they have worked so hard to fight for ten minutes.

In this way, the deep sea monster slowly grinded for about two hours, and everyone did not feel tired because of the abundant material reserves, but the same attack action was carried out more, and they were somewhat numb.

But soon, when the blood volume of the deep sea monster reached 70%, that is, when the eleventh roar should be released, the undercurrent that should have appeared did not appear, and the deep sea monster seemed to be annoyed by their steady attack, it bounced up hard, Su Yu didn't want to think about it, and directly asked everyone to retreat, and everyone who was already ready immediately ran away.

With a loud 'bang', the deep sea monster landed again, and its originally pitch-black body turned into a dark gray translucent body.

"It's like ...... with a phantom," someone couldn't help but say, and everyone immediately agreed.

Wraiths are also translucent, except for their color compared to the Deepsea Monsters.

With such an obvious change, they could also guess that the deep sea monster at this time should have entered another form - the illusion spirit!

Although the Deep Sea Monster in this form has only one active skill, this active skill can summon mobs to attack everyone.

The leader of the summoning system has always been the most troublesome, which is recognized by almost everyone, so even if the deep sea monster at this time does not look as terrifying as before, everyone still does not dare to let down their vigilance.

"Don't go over there yet, see how it attacks." While waiting for the Deep Sea Giant to completely change its form, Su Yu opened the information panel of the Deep Sea Giant Demon, and when she saw the new data on it, she couldn't help frowning.

【Phantom Guardian Beast: Deep Sea Monster】

HP: 6435947/8000000 (8 million)

Attack: 1000

Defense: 2000

……

Like the passive description of the Illusory Spirit seen in the skill before, the blood volume of the Deep Sea Monster that turned into the Illusion Spirit increased by a full three million, and they had already increased the blood volume of the Deep Sea Demon to 70%, which is about 3.4 million or so left.

However, due to the change of form, its upper limit of HP increased by 3 million, and the existing HP also increased by 3 million.

After that, the attack data is halved and the defense data is increased.

Originally, the defense of 1,000 points was already very high, for everyone with an average attack power of only more than 800, if it weren't for the gain state of Miyayu Qinyin and a series of bonuses such as rune potions, they wouldn't even be able to break the defense of the deep sea monster.

But now that their defense has doubled, even if they have more items and statuses, it is absolutely impossible for them to increase their attack power to two thousand.

Therefore, if they continue to attack the Deep Sea Monster, then they can only deal the mandatory damage of the 'Deep Sea Primordial' point at most, but more of them are 'Immunity' damage that cannot break the defense.

When Su Yu learned about the situation of the deep sea monsters in the form of phantom spirits, the deep sea monsters also found out about these human escapes, so it immediately stretched out its long tentacles to attack and chase them, forcing them to enter the battle with itself.

Because of this, everyone who can't see the data can clearly find that their attacks can't cause any damage to the Deep Sea Monster at all.

"My lord, what should we do now?" Doya is one of the few who can deal damage to the Trolls of the Deep, as she is still wearing the Fire Demon Armor suit that Su Yu gave her in the early days.

Although the other basic attributes of this set have lagged behind a lot, because the passive percentage of health deducted provided by attribute 2 is too rebellious, it still far exceeds the equipment of other archers in terms of output.

According to the 10% probability of triggering the fire damage that lasts for 10 seconds, even if all defense attributes and level suppression are deducted, as long as Doya can trigger the effect of this continuous damage, then it can stably deal about 300 fire damage per second to the Deep Sea Monster.

Compared to other outputs that can't even break the defense, Doya is already crushing.

But obviously, they couldn't rely on Duoya alone, otherwise they would have to spend another six hours on burning this deep sea monster with more than 300 damage per second!

Not to mention whether there would be any other accidents during these six hours, Doya herself couldn't stand the continuous attack consumption of nearly ten hours.

"It doesn't matter if you can't break the defense, everyone continues to attack...... But since you can't hit it, you don't have to do your best to attack, mainly to dodge attacks, and wait for the deep sea monster to launch its skills and then see the situation. "Previously, in the form of the Deep Sea Original, the Deep Sea Monsters would enter a weakened state due to their bloodthirsty skills, which strengthened their combat effectiveness in disguise, so the Illusion Spirit Form should have a similar mechanism.

Su Yu didn't have a better way at the moment, so she could only wait and see.

In the process of waiting for the Deep Sea Monster to release its skills, Su Yu also asked everyone to try attacking various parts of the Deep Sea Monster, testing if there was anything that was its weak point, and usually causing damage to the weakness was not only the real damage that broke the defense in full, but also the damage caused was either doubled or critical.

It's a pity that this deep-sea monster in the form of a phantom spirit is like a guy hiding in a turtle shell, the entire skin is invulnerable, invulnerable, and it looks invincible, without any weaknesses.

However, soon, the 'Summoning' skill that Su Yu was looking forward to finally appeared, only to see that the Deep Sea Monster suddenly stopped attacking, and then raised all its tentacles high, and then began to summon the Illusion Mob in a posture similar to that of a human mage.

'Click-'

'Click-'

The sound of two heavy objects falling to the ground that was not crisp attracted everyone's attention, and everyone looked towards the source of the sound, only to see an amazing scene-