Lost Sword Normal Stage 57-40 Budget Clear Guide

To clear Normal Stage 57-40 in Lost Sword on a budget, switch off auto-combat before the boss arena and manage your skill timings manually. The encounter acts as the roadblock of Chapter 57, testing frontline endurance against a heavy telegraphed charge attack alongside single-target damage output before the hard enrage timer triggers.

Success requires locking down the boss's wind-up attacks with crowd control, maintaining tank positioning, and aligning your damage buffs during boss recovery phases.

Recommended Budget Team Composition

High-rarity or heavily invested units are not required if your team covers four essential combat functions: frontline damage absorption, single-target burst, utility buffing or debuffing, and sustain.

Role	Primary Unit	Accessible Substitute	Tactical Objective
Frontline Tank	Galahad	High-Defense Knight	Absorb basic cleaves, resist knockback, and shield frontline
Single-Target DPS	Lueria	Crassa	Burn down boss health pool during vulnerability windows
Buffer / Utility	Lilia	Elizabeth	Strip enemy shields, buff attack, and disrupt boss wind-ups
Sustain Support	Dedicated Healer	Hybrid Shield Support	Cleanse party debuffs and recover frontline after shockwaves

Galahad provides crowd-control mitigation and self-shielding, keeping the boss turned away from your party. Single-target specialists like Lueria or Crassa are preferred over area-of-effect damage dealers because the fight's primary challenge is beating the stage timer against a single high-health target.

Manual Combat Execution Sequence

Clear the preliminary minion waves automatically, but disable auto-skill before entering the boss room to ensure every unit starts with full energy gauges.

Let the boss engage: Allow your tank to make initial contact and settle into position before triggering offensive skills.
Interrupt the telegraphed charge: Watch for the boss's wind-up animation or telegraph marker. Deploy a crowd-control skill immediately to stun or silence the boss, canceling the heavy cleave and preventing frontline displacement.
Trigger the burst window: Once the boss is interrupted and enters its recovery state, cast defense-shred debuffs and attack buffs, followed immediately by your carry's ultimate. Avoid spending high-cost damage skills while the boss maintains active defensive shields.
Stabilize and rebuild: Use basic attacks to regenerate skill energy. Reserve your healer's burst ability for the party-wide shockwave damage rather than reacting to minor chip damage on the tank.

Stat and Equipment Prioritization

Direct your best equipment and upgrade resources into your tank and main carry rather than spreading them across the entire roster:

Frontline Tank: Prioritize physical defense, maximum health, and damage reduction substats. Equip relics that grant knockback resistance to prevent the boss from pushing your tank into the backline.
Single-Target Carry: Stack flat attack, critical hit rate, and critical damage. Attack speed substats help build skill gauge energy faster, allowing more burst rotations before the enrage limit.
Support and Pets: Equip pets that provide team survivability or damage amplification. Avoid using utility pets focused on experience or gold gain during progression attempts.

Troubleshooting Stage Wipes

If your team fails the encounter, identify the timing and cause of the wipe to make the proper adjustment:

Tank dies within the first 30 seconds: Your frontline is taking uninterrupted charge attacks or lacks defense. Ensure hard crowd control hits during the boss's wind-up animation, or move your highest damage-reduction relics to the tank.
Backline wiped by splash damage: The boss is pushing the tank backward. Equip knockback-resistant gear on your frontline unit or land crowd control earlier to halt forward movement.
Battle reaches the time limit: Your team is running excessive defensive utility. Replace a secondary defensive support with an offensive buffer providing armor penetration or attack boosts, and confirm your main carry is holding ultimate skills until defensive barriers drop.