How to Pass Level 40 of Jian'an Outer History: A Guide to Clearing the Summer Hill Reinforcement Battle

The core mechanism of the Jian'an Outer History Lower Hill Reinforcement Battle stage is the promotion system for generals. Players can upgrade basic troop types to advanced classes in the pre-battle menu, significantly boosting their combat power. So, today, I will share with you how to pass level 40 of Jian'an Outer History. In fact, the key to quickly passing this level lies in choosing the right promotion direction and allocating resources reasonably, requiring targeted adjustments to the lineup based on the characteristics of the enemy troops. Next, I'll introduce some strategies for troop combinations and other gameplay tips to help you clear the level quickly.

After entering the menu at the beginning, prioritize promoting your main damage dealers. You can choose to promote Zhang Fei from a light infantryman to a heavy cavalry, using blue sashes and copper coins to increase his defense and charge damage. It's recommended to promote Liu Bei to a physician, unlocking group healing skills. Promotion materials can be obtained through achievement rewards from the previous levels; if resources are insufficient, prioritize strengthening core attackers like Zhang Fei and Guan Yu, delaying the development of support characters.

The enemy force mainly consists of a mix of spearmen and shield bearers, so it's necessary to promote units that can break defenses. Promote Zhao Yun to a spearman, unlocking piercing attack skills that can penetrate two shield bearers at once. Huang Zhong should remain an archer, advancing to a repeating crossbowman to gain the ability to fire three shots in rapid succession, specifically targeting the enemy's rear healers. When encountering fire-attack units, advance Mi Zhu to a Taoist, unlocking fire-extinguishing skills to protect the supply carts.

In narrow terrains, it's advisable to promote control-oriented characters. After transforming into a strategist, Jian Yong unlocks a group stun skill, which, when combined with Zhang Fei's charge, disrupts the enemy formation. Xiahou Bo should be promoted to a heavy guard equipped with a heavy shield, blocking the path and triggering a 60% block rate. Note that after promotion, the characters need to be re-equipped with suitable weapons, for example, a spearman must switch to an armor-piercing spear to penetrate shields.

During the boss battle phase, keep at least two promotion opportunities. When the enemy commander appears, immediately promote Guan Yu to a divine general, activating the area slash skill of the Green Dragon Crescent Blade. If the boss summons cavalry reinforcements, temporarily promote Guo Jia to a Flame Sorcerer, releasing a wall of fire to block the charging route. After the battle, remember to sell low-tier equipment for money, reserving resources for future promotions in subsequent levels.

The key strategy for the Lower Hill Reinforcement is to adapt flexibly. Adjust the promotion path according to the enemy troops: use spearmen to break shields, archers to target the backline, and control characters to disrupt the enemy's rhythm. Don't skimp on resources for healers and crowd control characters; promote them as needed, as survival is more important than damage output. Keep two promotion opportunities before facing the boss. As soon as you see the boss and his minions charging, immediately promote Guan Yu to a great sword user for area attacks, ensuring a stable passage through the level.