Honkai Star Rail Interference Key: How to Get and Use It Effectively

In Honkai Star Rail, many players always try to make characters stronger by fixing the Relic and Planar Ornament build. But farming this piece often feels random and tiring. One new thing, the Interference Key, comes to help reduce a little bit of that chance. This item lets the player keep one substat safe while trying to reroll. Because Relic perfecting is so much luck-based, this Interference Key makes a difference by blocking one stat so it does not change. Since it comes together with Variable Dice, many people in the community start talking about how to use and get it.

How to Obtain the Interference Key in Honkai Star Rail

In Honkai Star Rail right now, the main way to get the Interference Key is through Anomaly Arbitration. This mode arrives in version 3.6 and gives a really tough challenge. Players need to go stage by stage, with each battle more difficult. The team must be well-prepared, balanced, and cover many elements to win. Unlike some other content, rewards here do not give Stellar Jades. HoYoverse makes sure it is not connected to premium pull currency, maybe to avoid unfairness. Instead, the reward is more for progress, like the Interference Key.

To take this item, players need to clear the King difficulty, the hardest stage inside Anomaly Arbitration. Even one star here is enough to claim it, but reaching that requires a strong lineup and a good plan. Lone Stardust also drops as a reward, which can be used in the Gift of Stardust shop since this content resets over time, giving more chances to get both Interference Keys and Lone Stardust.

Event Rewards and Other Ways

Anomaly Arbitration is the main place; some events also give an Interference Key. One example is Conductor’s Special Treat, which offers the item along with Lone Stardust and Jade Feather. This event ends around version 3.7, but it shows that HoYoverse sometimes hands out such rewards through the mailbox or events. Checking in-game mail often is a good idea, since developers sometimes send a bonus gift. Not every time contains an Interference Key, but possible way for an extra copy without fighting the hardest stage.

Way to Use the Interference Key in Honkai Star Rail

In Honkai Star Rail, when a player already owns an Interference Key, it can only be used on a fully upgraded Relic or Planar Ornament. To apply, a player must use the Block Stat option and combine it with the Variable Dice reroll.

Step work like this:

• Pick a Relic or an Ornament ready to reroll.
• Turn on Block Stat with Interference Key.
• Reroll by Variable Dice.

The stat a player lock stays the same, while other rolls are again random. This allows protecting one important substance while still gambling on the rest.

The best way is to save the Interference Key for a 5-star Relic or Ornament that already has at least two useful substats. With a lock, you make sure progress is not lost and have a higher chance of ending with a strong piece. Players who’ve been following new content updates and Honkai Star Rail 3.7 Lineup Leaks already know that more complex mechanics are coming, making optimization tools like the Interference Key even more valuable.

Reason Interference Key Matter

For a long time, Relic farming in Honkai Star Rail has frustrated many. The roll system depends too much on luck, and sometimes many runs give nothing good. The Interference Key cannot remove all randomness, but it brings a layer of choice. Now the player can keep one stat safe, like CRIT or Speed, while rerolling others. This helps a lot in late-game content such as Memory of Chaos or even Anomaly Arbitration itself. Keeping the most needed stat means less waste of grind and more focus on improving rest.

At the end, learning how to get and use the Interference Key in Honkai Star Rail really becomes useful for many who feel frustrated with random rolls on Relic. It does not make farming fully fair, but at least it brings a little bit of control, so grinding does not always feel wasted. Even though this item is quite tough to obtain and needs a strong squad to clear, it still gives value, since locking one good stat can decide if the build succeeds or fails. Until the game update, maybe add more ways to collect it. Interference Key remains a special thing that any serious player should keep an eye on.