Whisperborne Traces of the Past Chapter 25 Guide

To clear Traces of the Past (Chapter 25) in Whisperborne, your immediate priority is to stop stage progression and max out all treasure sets from the Future chapters. Chapter 25 imposes a strict stat gate on your team's baseline health, attack power, and defense multipliers. Without completed Future treasures, your frontline units will fall to wave damage before they can trigger their special abilities or clear enemy swarms.

Prerequisites and Core Progression Bottleneck

The primary obstacle in Chapter 25 is inadequate passive stat multipliers. High-level units alone cannot offset missing treasure bonuses against late-game enemy density.

Before attempting any stage in this chapter, verify your preparation against these key bottlenecks:

Future Chapter Treasures: Collect every treasure set from the Future chapters to max out your passive attack, health, and defense multipliers.
Frontline Breakpoints: Ensure defensive tanks have enough health to survive heavy chip damage while your damage dealers cycle cooldowns.
Resource Allocation: Concentrate resources on a dedicated core team with full treasure support rather than spreading upgrades across a broad roster of under-leveled units.

Stage Demands Across Chapter 25

Traces of the Past consists of eight distinct combat stages. Each stage tests a specific aspect of your squad composition:

Stage Name	Tactical Focus	Recommended Unit Role
Valkyrie Plains	Frontline sustainability check	Defensive tanks
Fly Minefield	Frontline sustainability check	Defensive tanks
Kugelshreiber	Managing dense swarms	Heavy area-of-effect (AoE) DPS
Muddy Trench	Managing dense swarms	Heavy area-of-effect (AoE) DPS
Sniper Jungle	Neutralizing high-range threats	Long-range tanks and durable pushers
Sunset Soldier	Neutralizing high-range threats	Long-range tanks and durable pushers
Father’s Back	Endurance and sustained DPS	Sustained damage dealers and crowd control
Border Recapture	High enemy density and base protection	Knockback units and high-DPS clears

Stage-Specific Strategies and Countermeasures

Protecting Against Ranged Snipers (Sniper Jungle & Sunset Soldier)

In Sniper Jungle and Sunset Soldier, specialized enemy variants target your backline support units from high range. If your formation breaks down, your primary damage dealers will die before reaching their targets. Deploy heavy defensive tanks to absorb incoming long-range hits, allowing your support units to work safely from behind your frontline.

Managing Dense Waves (Kugelshreiber & Muddy Trench)

Kugelshreiber and Muddy Trench spawn dense clusters of fast-moving enemies. Single-target damage dealers will quickly become overwhelmed. Use units with high area-of-effect (AoE) damage to clear multiple targets simultaneously and prevent enemy swarms from pushing toward your base.

Handling Endurance Tests (Father’s Back & Border Recapture)

The final stages require crowd control alongside high sustained damage. If you take too much chip damage on Father's Back, replace a redundant secondary DPS unit with an extra tank or healer to stabilize your frontline.

For Border Recapture, enemy density reaches its peak. Include units with heavy knockback abilities to stall or push back enemy waves, keeping them away from your base while your primary damage abilities finish their cooldown cycles.