Honkai: Star Rail Apocalyptic Shadow V2.6 Sovereign Control Guide

Apocalyptic Shadow in version 2.6 has refreshed to Sovereign Control. In this version, you'll be facing Kafka and Cacophonic Conductor.

Current Buff in Apocalyptic Shadow V2.6

• When an enemy with "Steadfast Safeguard" aka Kafka and Sunday boss is Weakness Broken, immediately recovers all Skill Points and activates Ultimate for all allies (by refilling Energy to the fullest).
• Increases Weakness Break DMG taken by all enemies by 20%.
• Increases Follow-up ATK DMG taken by all enemies by 20%.

Boss 1: Kafka (Soulhook Sovereign)

Boss Trait

1. Boss Mirage takes 50% less DMG. After Weakness is broken and action gets additionally delayed, additionally increases DMG taken by 100%.
2. Boss Mirage will transmit its own Weakness Type to the summon. After any one of its summons is defeated, the summon's Weakness Type will be added to the remaining summons.
3. Attacking summons reduces Boss Mirage's HP by an equal amount. After any summon is eliminated, the remaining summons' SPD increases and the DMG they take increases.

TLDR & Tips

• When the battle starts and Kafka summons her minions, you need to focus on one of the summons (or both if you bring AoE DPS). Among the 2, focus on the minion that has the Weakness Type of your Main DPS. Once the first minion loses, their Weakness will be transferred to the remaining minion and they will take increased DMG.
• Remember to bring a healer that can remove debuff as Kafka's ability can put your characters in the Dominated state (Kafka will control them and use the Dominated character to attack your other ally).

List of Buffs

1. Total Dominion
   Increases the DMG dealt by all allies' Basic ATKs by 50%
2. Impassioned Spirits
   After defeating any enemy targets, advances all ally targets' action by 10%
3. Turn of Luck
   Follow-up attacks of characters ignores 15% of the enemy targes's All-Type RES and can also reduce the Toughness of targets that do not have the corresponding Weakness, with the effect being equivalent to 50% of the original Toughness Reduction from abilities.

Team Comp & Buff Choice

Challenge Strategy

In the first phase, there are Blaze Out of Space and Ice Out of Space. Right from the bat, Kafka will give Physical and Imaginary to the Blaze and Fire and Wind to the Ice. And as you can see in the image above, Kafka will have no Weakness until you defeat the summons so the Weakness will return to her.

Remember that attacking the summons will also reduce Kafka's HP by an equal amount (but not vice versa). That's why you can ignore Kafka for now and just focus on the summons.

Once you defeat one of the summons, the Weakness Type will be transferred to the remaining summon, its SPD will increase, but it will also receive more DMG. Don't attack Kafka and defeat the remaining summon now that it received increased DMG.
Oh and yes, when a summon is defeated, Kafka's Toughness Bar will also be decreased by a huge chunk as you can see in the image above.

Once both summons are defeated, the Weakness Type will return to Kafka. Now this is the moment you unleash everything to Kafka to break her Toughness.

The best part is when Kafka's Weakness is Broken, you will regenerate full Energy (including Acheron and Feixiao's mechanism), get all the Skill Points, and Kafka will receive more damage. Unleash EVERYTHING you have right now.

The second phase is just the same like the first phase where you need to focus on the two summons (prioritize the one with your Main DPS weakness type) before attacking Kafka. This time, the dinosaur on the left has Physical and Imaginary while the dinosaur on the right has Fire and Wind Weakness.

Boss 2: Cacophonic Conductor

Boss Trait

1. Boss Mirage takes 50% less DMG. After its Weakness is broken, its action is additionally delayed and the DMG it receives increases by 100%.
2. When summons are Weakness Broken, Boss Mirage will lose a certain amount of Toughness. After summons are Weakness Broken, "Horizon's Echo From Afar" charges up. Use "Horizon's Echo From Afar" to deal massive DMG to all enemies and reduce their Toughness.
3. Boss Mirage will share its own Weakness Type with the summon. After any of its summons is Weakness Broken, the summon's Weakness Type will be added to all enemy targets.

TLDR & Tips

• When the battle starts, focus on the minions around Sunday (there are 4 of them). The boss shared its weakness with the summoned enemies. Initially, all the summons will have 1 Weakness Type only. But after defeating one summon, its Weakness will be shared to all other summons, making them have multiple Weakness Types.
• When any of the summons are Weakness Broken, it will charge "Horizon's Echo from Afar" aka the train icon on the right side. Once the train is charged up, you can use it to deal damage and reduce all enemy units' Toughness.
• Special mention for the second phase, Break summons or reduce Boss Mirage's Toughness to gain Shield and withstand the boss' Ultimate attack.

List of Buffs

1. Victory Rush
   After a character uses Follow-Up ATK, advances their action by 15%. This effect can be triggered a max of 1 time(s) per character before their next action
2. Swift Eradication
   The Weakness Break Efficiency increases by 25% when characters deal Ultimate DMG.
3. Breed War with War
   Increases all ally characters' Break Effect by 50%. When a character Breaks an enemy target's Weakness, regenerates 5 Energy to the character.

Team Comp & Buff Choice

Challenge Strategy

There are 4 Weakness Types here, and Sunday will give each of them to the summons. Initially, each of them will have 1 Weakness Type. When any of the summons is Weakness Broken, their Weakness Type will be shared with all other summons.
P/S: The reason all of them have Fire Weakness is because of Firefly's Technique which applies Fire Weakness to all enemies. The summons will only have 1 Weakness Type at first. You'll know once you play it.

Aside from sharing their Weakness Type when Weakness Broken, Sunday's Toughness Bar will also be decreased. In addition, the "Horizon's Echo From Afar" will also be charged (the train icon on the right).

Survival is not a problem here because breaking enemies' toughness will grant your team with a shield that can be stacked. Yes, Weakness Breaking enemies here brings a LOT of benefits.
In the second phase, 7000-8000 shields can withstand the damage of Im Anfang war die Tat (Sunday's Ultimate).

Video Walkthrough