How to Defeat Lichen in The Battle Bricks Chapter 5

To defeat Lichen in Chapter 5 of The Battle Bricks, you must focus on overwhelming the boss with consistent, high-damage unit pressure while maintaining a balanced defense to survive its unique attacks. Success requires careful resource management and timing your strongest units to capitalize on openings in the boss's attack cycle. By optimizing your deployment sequence, you can effectively deplete the boss’s significant health pool before your own line of defenses collapses under the pressure of the undead waves.

Analyzing the Lichen Encounter

Lichen serves as the final, formidable obstacle in Chapter 5, marking a significant spike in difficulty. This boss encounter is defined by its high health pool and aggressive attack patterns that punish players who rely on weak, low-damage units. Recognizing that the "easy phase" of the game concludes here is vital; you must shift from general squad compositions to specialized loadouts that prioritize burst damage and survivability against undead-type enemies.

The primary challenge during this fight is managing the constant influx of enemy units that distract your forces from focusing on Lichen itself. You should prioritize clearing the smaller mobs quickly to ensure your primary damage dealers can land clean hits on the boss. Neglecting these supporting units often leads to your frontline getting pushed back, leaving your backline vulnerable to Lichen’s wide-reaching offensive strikes.

Optimizing Your Unit Deployment

Success against Lichen depends heavily on the timing of your unit deployments. Rather than deploying units as soon as they become available, wait for enough currency to stack high-damage dealers simultaneously. This "burst" strategy ensures that you overwhelm the boss's defensive capabilities, preventing it from recovering or pushing your line back during its recovery frames. If you deploy units sporadically, the boss will pick them off one by one, wasting your valuable resources.

When building your team for this specific stage, prioritize units with high attack speed or area-of-effect damage. This allows you to handle the crowd control required to keep the battlefield clear while simultaneously chipping away at Lichen's health. If you find your units are consistently dying before reaching the boss, it is time to reassess your defensive layers; ensure you have at least one or two tanky units to soak up damage while your glass-cannon DPS units do the heavy lifting.

Managing the Resource Economy

During the Lichen boss fight, your resource management determines how long you can sustain the pressure. Because the battle can become a war of attrition, you must avoid over-investing in low-tier units that will be cleared away by Lichen’s attacks. Focus your spending on high-value units that provide significant return on investment. If you find your resources running dry, consider rotating your deployment to save up for a coordinated push rather than constant, ineffective spending.

Keep a close eye on the flow of the battle. If you notice your currency generation is struggling to keep up with the enemy's spawn rate, adjust your strategy to prioritize units that offer utility or stalling capabilities. Stalling allows your economy to recover, giving you the breathing room to deploy your most powerful units. This balance between offensive output and resource conservation is the difference between a successful clear and a failed attempt.

Overcoming Boss Attack Patterns

Lichen possesses specific attack animations that signal when you are at the highest risk of losing your units. Learning to identify these visual cues is crucial for high-level play. When Lichen prepares its signature attack, avoid deploying your most valuable units immediately, as they may be wiped out before they can contribute to the fight. Instead, use expendable units as bait to trigger the boss’s attack animation, then immediately deploy your heavy hitters once the attack concludes.

This "bait and strike" method minimizes casualties and ensures your damage dealers remain on the field for as long as possible. Remember that Lichen’s threat level increases as its health drops, meaning the final stage of the fight is significantly more chaotic. Prepare to shift to a more defensive stance toward the end of the encounter to ensure you can weather the boss's final, most aggressive attacks while finishing it off.