Lords Mobile Petite Devil Stage 4 Auto Battle Guide

To clear Stage 4 of the Petite Devil Limited Challenge (Trick vs Trick) on full auto in Lords Mobile, deploy Rose Knight, Child of Light, Prima Donna, and Tracker alongside the locked Petite Devil. This composition provides the immediate damage barriers, sustained healing, and layered area stuns required to survive enemy burst damage without manual targeting.

Recommended Full Auto Hero Lineup

Petite Devil is locked into your team as a primary magic damage dealer and disabler. The remaining four slots must absorb early enemy burst, interrupt opposing abilities, and restore health as energy meters fill.

Hero Slot	Recommended Hero	Primary Role	Key Auto Contribution
Locked Slot	Petite Devil (Etoile)	Magic DPS / Disruption	Stuns enemy lines and deals burst magic damage via Prank.
Tank / Frontline	Rose Knight (Joan)	Support Tank	Casts Justice Call at wave starts to shield squishy backliners.
Secondary Frontline	Child of Light (Sparky)	Crowd Control Tank	Absorbs frontline hits and unleashes wide area stuns.
Dedicated Healer	Prima Donna (Felicia)	Team Sustain	Fills team health bars automatically whenever energy maxes out.
Ranged Burst DPS	Tracker (Chadra)	Single-Target Finisher	Snipes high-threat casters and bosses from safe range.

Role Breakdown and Substitutions

Rose Knight provides an essential opening barrier via Justice Call at the start of each wave. This barrier absorbs the initial wave spike so Prima Donna and Petite Devil do not die before casting.
Child of Light adds a second sturdy target to split incoming melee damage while chaining area stuns that prevent enemy skills from activating.
Prima Donna acts as the sole team healer. On auto, she casts her ultimate immediately upon reaching full energy.
Tracker remains the safest damage dealer because she attacks from the backline and adds extra stun utility. If you lack single-target damage or need to eliminate backline threats faster, Demon Slayer can take this slot, though diving into enemy clusters increases his risk of taking lethal damage.

Wave-by-Wave Progression

Activate auto battle and let the squad execute its rotation. Monitor health meters across all three waves to confirm your heroes meet survival thresholds.

Wave 1

Rose Knight immediately applies a damage barrier to absorb the enemy frontline's opening strikes. Child of Light and Petite Devil quickly charge their abilities, locking the forward enemy cluster into an initial stun.

Your heroes should leave Wave 1 with nearly full health and partially charged energy meters. If Child of Light drops below 40% health before Prima Donna can trigger her first heal, your heroes' base ranks or equipment levels may be insufficient for this challenge.

Wave 2

Wave 2 introduces enemy casters capable of hitting multiple squad members. Automated skill timing counters this threat by overlapping crowd control:

Petite Devil casts Prank to disable the enemy frontline.
Child of Light stuns remaining active targets, halting enemy channel abilities.
Tracker uses her sniper ultimate to eliminate incapacitated targets one by one.

Prima Donna typically triggers her ultimate heal midway through Wave 2 after your tanks absorb initial cleave attacks. Ensure your frontline is fully healed before the wave clears to prevent an instant wipe in Wave 3.

Wave 3

The final wave features boss-tier units that deal heavy burst damage right at the start. Rose Knight casts a fresh shield during the transition, protecting Child of Light and the backline from the initial charge.

Petite Devil unloads her fully charged ultimate immediately upon entering the wave, stunning the boss cluster. This interrupt window allows Prima Donna to cast her heal and keeps Child of Light alive. As long as your two tanks survive the first ten seconds of Wave 3, your heroes will cycle their stuns continuously until the bosses fall.

Troubleshooting Failed Runs

Unfavorable critical hits or staggered enemy skill timing can occasionally disrupt an automated run. Adjust your lineup if failure persists:

Prima Donna dies early in Wave 2 or 3: Enemy ranged units are bypassing your frontline aggro. Replace Tracker with Oath Keeper to add a third frontline body and keep enemy targeting away from the backline.
Tanks die before healing triggers: If Child of Light drops instantly in Wave 3, your heroes need higher base stats. Aim for Rank 7 or Rank 8 with equipped hero gear.
Battle times out: If your team survives easily but cannot clear the stage within the time limit, swap Tracker for Demon Slayer to accelerate damage against backline targets.

If a run fails strictly due to an unlucky enemy critical strike in the opening seconds of Wave 3, restart the battle immediately. Small variations in stun timing often yield a clean victory on the subsequent attempt.