All of Zhao Feng's hopes were placed on the three heroes and the ballista.

The ballista is a seventh-level ballista, and the hero's mana is basically full, which is Zhao Feng's hole card.

The Ballista is a large unit that occupies a 6-block position, and Zhao Feng's three heroes are attached to the Ballista Station on the side of the Ballista.

Then, on the periphery of the ballista, there was a circle of Hercules Aegis.

Because the dragon clan has dragon breath, the dragon breath can attack a fan area of 3 rows and 9 squares, so to prevent the dragon breath attack of the holy dragon, the Hercules shield must be three blocks away from the hero.

In this way, with the Ballista and the hero as the core, and the Hercules Aegis as the perimeter, a square with a length of 9 blocks and a width of 9 blocks is formed.

The Aegis of Hercules occupies two squares, and there can be one space between the two Aegis Hercules, and to fill the side line of this square with the Aegis of Hercules, you need 11 Aegis Hercules.

Zhao Feng had to rely on the Hercules shield of the three heroes to cooperate with the seventh-level ballista to create a miracle.

Kaye Dessa is a physics hero, his knowledge attributes are not high, and he has more than 400 mana points, the key is the Sea of Skulls and the Fire Meteor.

Two heroes, one wearing a T6 Eagle suit, 123 knowledge and 101 strength, and one wearing a T5 Eagle suit, 122 knowledge and 106 strength. With a 40% bonus to intelligence and magic skills, the Sea of Skulls has 1722 mana, and the fire meteor has 1708 mana, and the magic effect

A Hercules Aegis costs 15 mana, but all three heroes have expert-level earth-based magic skills, which can reduce the cost by 4 points, and only need 11 mana.

The hero's two-star Hercules Aegis can last for 14 rounds, and it can be extended to 19.6 rounds with the bonus of expert-level earth-based skills, and both heroes have more than 100 points of strength, and the magic effect can be increased by more than five times.

In the end, each Hercules shield of Skull Sea and Fire Meteor can last for more than 160 turns, Fire Meteor's Hercules Aegis can be released 155 times, and Skull Sea's Hercules Aegis can be put 156 times.

There is one Hercules Shield every five turns, and 11 Hercules Shields take 55 turns, so either the Sea of Skulls and the Fire Meteor can support the virtuous cycle of the Hercules Shield.

Kaye Dessa's mana is not much, but he can cooperate with it, Zhao Feng estimates that he can hold up at least 4,000 rounds.

And how much damage does a level 7 ballista do?

The Level 7 Ballista is equivalent to a Level 7 Arrow Tower, with its own armor-piercing perk, which can deal 500 damage per turn.

Armor piercing, ignoring defense, karma means that whether it is zero defense or infinite defense, it is useless in front of arrow towers and ballistas.

Then, in 4,000 rounds, a level 7 ballista can cause 2 million damage, and according to the calculation of 11,000 damage points for a holy dragon, it can kill 180 of them.

The key now is whether Zhao Feng can hold on for so many rounds without making mistakes.

4000 rounds, 3 seconds per round, more than 3 hours, Zhao Feng must concentrate on carefully arranging the release and replenishment of the Hercules Shield, once he makes a mistake, let a holy dragon rush in, Zhao Feng will be finished.

Therefore, Zhao Feng put all his body and mind on the battle.

It was a battle of perseverance, and an hour had passed, and Zhao Feng's eyes had become astringent.

An hour and a half had passed, and Zhao Feng's hands were already trembling a little.

Two hours passed, Zhao Feng's eyes were already sore and sleepy, and his head began to dizzy.

For two and a half hours, Zhao Feng's hands, eyes and brains were already overwhelmed, and he felt that his hands were not his own hands.

But victory was just around the corner, and there were 33 holy dragons left in the computer, Zhao Fengqiang was shocked and felt that he had recovered some of his spirit.

After holding on for more than ten minutes, the number of holy dragons was reduced by half again, but Zhao Feng couldn't support it anymore, and there was almost a Hercules shield that didn't make up.

Seeing that victory was a kick in the door, and he must not lose, Zhao Feng gritted his teeth and released the last hole card, the ambush of Kaye Desa's 12 ghost dragon knights.

There are only 17 holy dragons left, and the difference in number is not large, barely enough to fight, at least to delay time.

Zhao Feng commanded the Ghost Dragon Knight to drop the Holy Dragon and pull the Holy Dragon far away.

If the dragon doesn't leave, the Ghost Dragon Knight will unleash a charge slash, using the charge slash to unleash the stunt Mind Strike or Curse of Aging.

The computer had no choice but to send the Holy Dragon to hunt down the Ghost Dragon.

The ghost dragon stops and goes, using its flesh and blood to stall for the ballista.

Fortunately, the health of the ghost dragon knight is also enough, under the hero talent bonus, the life is as high as 7780, and when it is one-on-one, in terms of damage output, it can replace the life of the holy dragon about 2000, but, after so many rounds of attacks, except for two or three holy dragons, the rest of the holy dragons are hung with the curse of aging, and their health is halved.

When all the ghost dragons were killed, there were still 9 Holy Dragons left, and six of them only had 3000 degrees of life left due to the Aging Curse.

The overall situation has been decided, the Hercules shield has just been replenished, and even if it is not replenished, it can resist another fifty or sixty rounds.

Zhao Feng's three heroes combined have more than 200 mana points.

The Holy Dragons decreased one by one, and when the last three Holy Dragons (the heroes themselves) remained, Zhao Feng began to use the remaining mana to release the Gathering Spirit Thaumaturgy.

Note: Heroes all have origins, when the hero level reaches level 9 or above, with the same origin of the troops (such as the skeleton kelp skeleton unit), the hero's health is shared with all soldiers of the same clan, if the fire is set to attack the hero, all soldiers lose blood together, so, under normal circumstances, the hero is the last to kill.

Author's note: At this time, I suddenly found that if the hero is also a combat unit, if it is killed instantly by a concentrated fire attack, then all the troops under the hero will lose the hero's attribute bonus. So this patch was added temporarily, and if it contradicts some of the previous battles, then go ahead, don't force it too much, hehe.

In the end, Zhao Feng rescued all 14 ghost dragon knights and more than 50 various troops and won the victory.

Finally over, listening to the prompts of the system, Zhao Feng lay down on the bed with relief and fell asleep.

When Zhao Feng woke up, it was already the fifteenth day of the Battle of the Nine Clans, that is, the third day that Zhao Feng had entered the Dragon Country.

It's really a difficult battle, this battle, Zhao Feng was able to win, there are many factors, first of all, the stunt fear of the Holy Dragon Force is ineffective against the undead, which is why Zhao Feng did not choose the poisonous dragon after the crystal dragon was eliminated.

Secondly, the seventh-level ballista is the main output of this battle.

Finally, and most importantly, the presence of the Hercules Aegis.

Hercules Aegis, the most powerful auxiliary magic in the single-player game Invincible, the absolute key to the completion of impossible tasks, is once again in the limelight in the hero game.

If this life is the same as the previous life, there should be no giant who can survive the eleventh battle except me. Zhao Feng thought happily.

Zhao Feng couldn't wait to go online and check the rewards.