Karel’s Mothership Conquest punishes glass-cannon builds and missed mechanics. This guide explains how to prepare, defeat every Commander, survive Karel’s three stages, and secure a cleaner completion.
Use this checklist before starting your first serious attempt:
Build enough HP, Shield, DEF, and damage reduction to survive unavoidable hits.
Bring reliable mob-clearing damage and a separate single-target option.
Destroy Propagate Nexus devices before attacking reinforced Vulgus.
Match Champion Vulnerability effects with the correct attribute.
Lure enemy groups near destructible structures before triggering their explosions.
Complete each Commander’s mechanic to create a safe burst window.
Destroy all four red projectors during Karel’s second stage.
Activate the protection dome during the first Colossal Karel energy attack.
Destroy later targetable energy orbs to interrupt and stagger Karel.
Stay close enough that Karel’s dividing walls cannot isolate the team.
Conquest becomes much easier when the squad completes mechanics instead of trying to overpower every enemy with raw damage.
Conquest is the highest difficulty of Karel’s Mothership. Every Vulgus enemy receives increased attack power and health, while selected Combat Zones contain altered objectives, different spawn locations, more Elite enemies, and additional Commanders.
The mode also introduces or expands several mechanics:
Enhanced abilities for four Commander types
Champion Vulgus with Attribute Vulnerability
Champions carrying Explosive Markers
Propagate Nexus reinforcement devices
Destructible structures that cause powerful area damage
Denser enemy formations and more dangerous boss phases
The dungeon’s regular mission and monster rewards are equivalent to Hard difficulty after the first Conquest clear. The main reasons to repeat it are leaderboard improvement, build testing, or additional Hard-equivalent farming.
For event participation rules and honor rewards, read our complete First Descendant Conquest event guide.
A high-damage build is useless if every major attack sends you into the downed state. Replace one or two optional damage modules if necessary and strengthen your defensive foundation.
Prioritize:
Maximum HP or Shield
DEF
Incoming damage reduction
Reliable HP or Shield recovery
Skill cooldown for defensive and support abilities
Enough MP sustain to keep essential skills available
There is no universal defensive number that works for every Descendant. Test the build against Conquest enemies and increase survivability if regular attacks remove most of your health or shield.
Karel’s Mothership alternates between dense Vulgus groups and long Commander encounters. A build optimized only for one target may struggle to control the Combat Zones, while a pure mobbing setup can make the bosses feel excessively durable.
Prepare:
Area damage for Vulgus groups
Strong single-target damage for Commanders and Karel
A weapon that remains effective when skills are unavailable
Enough ammunition or resource recovery for long fights
Burst damage that can be saved for stagger windows
Do not spend every cooldown as soon as it becomes available. The best damage opportunity usually begins after a successful mechanic interrupts or stuns a Commander.
Attribute Vulnerability Champions receive increased protection against attributes other than their displayed weakness. Applying the appropriate Electric, Toxic, Fire, or Chill effect removes the Champion effect and lowers Attribute DEF for the Champion and nearby Vulgus.
A four-player squad should avoid relying completely on one damage attribute. Coordinate elemental coverage before entering so someone can remove each possible Vulnerability effect.
Mobility, crowd control, recovery, and revives have significant value in Conquest. Karel uses pulls, walls, slowing zones, falling attacks, and powerful charged abilities that can disrupt a stationary damage rotation.
Utility becomes especially important when:
A teammate is trapped behind a wall
Several players are affected by slowing zones
A Commander begins a required mechanic
Karel interrupts skills with a pull
The team needs a safe revive
Adds are overwhelming the designated damage players
A balanced squad is safer than four Descendants competing for the same damage role.
A reliable four-player setup contains:
One support or recovery specialist
One strong mob-clearing Descendant
Two single-target or hybrid damage dealers
At least one player capable of surviving while reviving teammates
Yujin is particularly useful for group healing, recovery, and safer revives. Ajax and Enzo can contribute defensive utility, while high-shield setups such as Harris can absorb more pressure. Bunny, Viessa, Valby, and Ines can help control enemy groups, while optimized Raven, Gley, Hailey, and other boss-focused builds can provide strong single-target damage.
These are examples rather than mandatory picks. A familiar, completed build is usually better than switching to an unfinished meta Descendant.
If you are attempting a Ranking Run, confirm the current team-composition rules before entering. Some ranking formats restrict duplicate Descendant groups even when matchmaking allows them.
A Propagate Nexus increases Vulgus DEF and grants Tow Immunity through Karel’s Special Energy Wave. Continuing to attack reinforced enemies wastes damage and extends the encounter.
When its effect appears:
Locate the device generating the wave.
Stop attacking the reinforced pack.
Destroy the generator immediately.
Group enemies together once the enhancement disappears.
Use area damage to finish the pack.
Assigning one mobile player to locate devices prevents the entire squad from searching in different directions.
Some structures contain visible Weak Points that trigger a powerful area explosion when destroyed. These structures are intended to help eliminate large groups.
For maximum value:
Keep the structure intact while enemies approach.
Pull or lure the Vulgus into its damage radius.
Wait until Elites and Champions are inside the area.
Shoot the structure’s Weak Point.
Clean up surviving enemies with area skills.
Do not destroy every structure before enemies reach it.
Check the Champion’s displayed attribute before committing your burst damage. Using the matching attribute effect strips its protection and also weakens nearby Vulgus.
If your damage appears unusually low, stop firing and confirm whether an Attribute Vulnerability effect is active.
Explosive Marker damage spreads through a half-moon-shaped area. The space close to the marker’s center remains safe.
Moving directly away can place you inside the damaging section. Instead, identify the center and reposition into the safe radius before the explosion activates.
Torisar’s circle and clone mechanic creates one of the longest Commander encounters when players ignore it.
Use this method:
Step inside the empty yellow or marked circles.
Remain there until each selected circle disappears.
Reduce the number of active circles to a small, manageable group.
Wait for Torisar to summon clones into the remaining circles.
Enter the circle containing a clone.
Focus the same clone as your teammates.
Repeat until every active clone has been defeated.
Use your strongest burst damage when Torisar becomes stunned.
Avoid scattering across different clones. Conquest versions have enough health to survive uncoordinated damage, allowing additional circles and clones to accumulate.
Do not mindlessly remove every circle immediately before the clone sequence. Keeping the remaining mechanic controlled and then eliminating the clones together creates a more reliable stagger.
The Pattern-Enhanced Arche Slayer uses barriers, probes, swords, and targeted dash attacks. The goal is to make the Commander collide with the correct object.
When the dash mechanic begins:
Identify which player has been targeted.
Place the sword-like device between the target and the Commander.
Hold position until the dash animation commits.
Roll or move sideways at the last moment.
Allow the Commander to strike the device.
Burst the Commander during the resulting stun.
In multiplayer, clones or separate attacks can target different players. Do not cross another player’s line or drag the dash through the squad. Each targeted player should concentrate on positioning before dealing damage.
One enhanced Commander uses a returning thrown weapon as its stagger mechanic.
The basic sequence is:
Watch for the large shuriken-like projectile.
Dodge after the throw is committed.
Collect the weapon after it lands.
Return it against the Commander.
Repeat the interaction three times.
Use the resulting stun for concentrated burst damage.
Ignoring the returned weapon turns the encounter into a much longer damage check.
Some Commander rooms fill with puddles, marked circles, or other persistent ground effects. These hazards are part of the encounter mechanic rather than ordinary area damage.
Assign one mobile player to remove or complete the marked zones while the remaining players control adds and maintain pressure. Do not let the entire floor become covered while everyone attacks the boss.
Once the required hazards have been cleared, prepare to burst the Commander during its interruption or stagger window.
Karel’s first stage introduces the core attacks used later in the fight.
Watch for:
Stun fields
Thrown energy orbs
Pulling attacks
Close-range strikes
Ground slams
Projectile barrages
Stay mobile and avoid standing directly beside another player. Spreading slightly prevents one attack from downing multiple teammates, but remain close enough to provide healing and revives.
Use cover against projectile barrages and save your largest cooldowns for a safe opening. Karel’s basic attacks can interrupt long skill animations, so activate stationary abilities only after he finishes an attack.
Karel can summon a holographic form and become invulnerable during the second stage. Shooting Karel during this sequence deals no useful damage.
Four red projectors control the mechanic:
Two projectors appear on one side.
Two projectors appear on the opposite side.
Split the squad into two pairs.
Destroy all four projectors quickly.
Regroup and eliminate remaining threats.
Burst Karel after his invulnerability ends.
Assign projector sides before starting the fight. If all four players run toward the same projector, the opposite side remains active and wastes valuable time.
Area-focused players should control adds while high single-target players destroy the projectors. Once Karel becomes vulnerable, use saved abilities during the stagger window.
The third stage transforms the fight into a large-arena encounter with dividing walls, energy attacks, falling projectiles, slowing zones, and powerful hand slams.
Karel’s first major charged energy attack cannot be interrupted normally.
A purple sphere appears on the floor near a party member. Move into the sphere and remain there while it charges. A visible line fills around it before the field expands into a larger white or blue protection dome.
Stay inside the completed dome when Karel releases the attack. The dome greatly reduces the incoming damage, although poorly defended builds may still take a significant hit.
Do not enter the small sphere and immediately leave. The protection field must be charged before it can protect the squad.
During later charge attacks, an energy orb can become targetable and display its own health bar. When that happens, every available player should stop attacking Karel and focus the orb.
Destroying it:
Interrupts the charged attack
Prevents massive squad damage
Staggers Karel
Creates a major damage window
Do not rely only on the orb’s color. Look for a targetable object with a separate health bar. If no targetable orb appears, locate and activate the floor protection sphere instead.
Karel telegraphs his hand attacks before striking the platform.
To avoid them:
Move away from the raised hand’s landing area.
Jump when a ground-wide shockwave approaches.
Use a timed roll for its invulnerability frames.
Avoid beginning a long skill animation during the telegraph.
Standing extremely far away does not guarantee safety. Staying at a manageable distance makes the hand movement and ground telegraph easier to read.
Purple walls can divide the arena and isolate party members. Regroup whenever Karel moves into a wall sequence.
Once separated, a player may be unable to reach:
The protection dome
A downed teammate
A targetable energy orb
Group healing or defensive abilities
Stay near the squad without stacking directly on top of each other. If a wall traps you in a bad section, move around the outer path where possible instead of repeatedly running into the barrier.
Karel can rain projectiles or Wall Crasher-style attacks onto sections of the arena. Purple ground indicators reveal where they will land.
Continue moving in one direction and roll just before impact. Avoid reversing into an area that was targeted for another teammate.
Gravity pools and red slowing spheres can make these attacks more dangerous. Leave slowing zones immediately and avoid fighting from narrow sections of the platform.
A failed revive can turn one downed player into two. Before reviving:
Check whether Karel is preparing a slam or energy attack.
Clear nearby adds.
Move into cover or a protection field when available.
Let the squad’s strongest recovery character handle the revive.
Keep another player ready to damage a targetable orb.
Do not abandon a required projector or Commander mechanic.
If Yujin is present and safely positioned, allow the Yujin player to manage priority revives while the other teammates maintain damage and mechanic control.
Ranking attempts require a complete eligible finish. Preventing departures and repeated deaths is more important than forcing a risky damage window.
Most failed attempts come from a small group of repeated mistakes:
Entering with a glass-cannon farming build
Ignoring Propagate Nexus devices
Attacking protected Vulnerability Champions with the wrong attribute
Destroying explosive structures before enemies enter their range
Skipping Commander stagger mechanics
Dividing damage between multiple Torisar clones
Shooting invulnerable Karel instead of the four red projectors
Leaving the protection sphere before the dome finishes charging
Ignoring a targetable energy orb
Splitting up before Karel creates dividing walls
Reviving during a clearly telegraphed attack
Using every damage cooldown outside stagger windows
Correcting these mistakes usually provides a larger improvement than adding another small amount of damage.
Secure a consistent completion before attempting leaderboard optimization. Once the squad can finish without repeated downs, improve the run one section at a time.
For faster clears:
Assign each player a specific combat role.
Preselect left and right projector teams.
Decide who handles Propagate Nexus devices.
Coordinate attributes for Vulnerability Champions.
Group Torisar’s clones and eliminate them one at a time.
Save burst abilities for every Commander stagger.
Regroup before Colossal Karel creates walls.
Call out protection spheres and targetable energy orbs.
Record which Combat Zone causes the largest delay.
Change only one part of the strategy between attempts.
Consistent mechanics produce faster results than resetting repeatedly for a perfect opening.
How do I unlock Karel’s Mothership Conquest?
Clear Karel’s Mothership on Normal difficulty once. A Hard-difficulty completion is not required.
What is the best Descendant for Karel’s Mothership Conquest?
There is no single required Descendant. A balanced squad benefits from healing or recovery, mob control, strong boss damage, and at least one durable reviver. Yujin is a valuable support option, while several fully built damage Descendants can fill the remaining roles.
Why does Karel become invulnerable?
During his second stage, Karel is protected by four red projectors. Destroy all four projectors to remove the invulnerability and create another damage opportunity.
How do I survive Colossal Karel’s charged attack?
For the initial indestructible attack, stand inside the floor sphere until it becomes a full protection dome. During later attacks, destroy the targetable energy orb when it displays a health bar.
How do I stun Torisar?
Reduce the number of empty circles, wait for clones to appear in the remaining circles, and focus each clone with the team. Defeating the active clones creates the main stun opportunity.
Should I prioritize damage or survivability?
Prioritize enough survivability to remain active throughout the encounter. A slightly slower build that avoids repeated downs usually clears faster than a maximum-damage setup that constantly needs reviving.
Can I use matchmaking for Conquest?
Matchmaking is available for playing Conquest, but Ranking Run eligibility has separate phase-specific rules. Review the official participation requirements before attempting a leaderboard record.
Do I need a leaderboard position for the first-clear rewards?
No. The standard Conquest honor rewards require one successful clear, not a leaderboard placement.
Karel’s Mothership Conquest is primarily a mechanics and coordination check. Build enough defense to survive, complete every Commander stagger, destroy Karel’s projectors, activate the protection dome, and focus each targetable energy orb.
If you need help preparing a Descendant, improving equipment, or completing difficult content, explore available seller offers under The First Descendant boosting. Check each offer’s exact scope before ordering.
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