How to complete the Omniscia Spares None achievement in Honkai Star Rail?

The Omniscia Spares None achievement can be found In Honkai Star Rail, in The Rail Unto the Stars tab, among its numerous achievements to unlock. Apart from this one, numerous achievements are straightforward to understand. However, some achievements may not have a clear description and require players to experiment with characters during battles, explore the game world, and search for hidden quests or items.

The in-game description of Omniscia Spares None, "What goes around comes around," is not very helpful in guiding you on how to obtain it.

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How to get the Omniscia Spares None achievement

To achieve the Omniscia Spares None in Honkai Star Rail, it is necessary to arrest Kafka in the mission called 'Stars Spun, Prescience Sprung.' This mission is the fifth part of the Trailblaze Mission chapter, 'Windswept Wanderlust.' This chapter is the fourth Trailblaze Mission in Honkai: Star Rail. It takes place in Xianzhou Luofu.

However, before undertaking this mission, it is essential to have attained Trailblaze level 29. Fortunately, defeating Kafka can be relatively easy if you follow this step-by-step guide:

1. Search for any clues that may be related to Kafka. You need to find three of these clues.
2. Once you have collected all the clues, start tracking Kafka's whereabouts
3. Utilise Diting to track the whereabouts of Kafka.
4. Keep chasing Kafka, remaining on her trail.
5. Follow her until you reach the other side of the gate.
6. Continue to track Kafka from this point. It is imperative to remain on her tail.
7. If you lose track of Kafka or are defeated, find another path to pursue her.
8. Head to the Exalting Sanctum Plaza.
9. Stroll around the Exalting Sanctum Plaza and look for the messenger that Fu Xuan sent. You need to find two of these messengers.

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Essential tips for fighting Kafka:

Avoid damage from Kafka's Lightning Bolts and Energy Blasts. You need to stay mobile and dodge frequently. Lightning Bolts target specific areas and deal massive damage to players within range, while Energy Blasts are sweeping attacks that damage a wide area. Dodging them is imperative to defeating Kafka.

Stay prepared to Use Quick Time Events to Your Advantage, where you must hit buttons rapidly to follow the events. To deal more damage to Kafka, pay close attention to the QTEs and hit the buttons quickly.

Be aware of Kafka teleporting around the battlefield during the fight, and you need to pay attention to her movements to avoid getting hit by her attacks. Additionally, be prepared to dodge her minions when she spawns them.

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Arresting Kafka and completing Stars Spun, Prescience Sprung will reward you with the achievement Omniscia Spares None, along with 10 Stellar Jades. It is the premium currency in Honkai Star Rail, which can be used to buy the Star Rail Pass and Star Rail Special Pass from the Store or Warp Menu. Each pass costs 160 Stellar Jade.