Zelda: Tears of the Kingdom — How to Beat the Flux Construct 3 Boss in TotK

The Legend of Zelda: Tears of the Kingdom The Flux Construct 3 boss is just one type of powerful opponent that you will encounter in Hyrule. They come in three varieties, aptly named 1, 2, and 3. The higher their number, the more health they have and the more damage they deal. They also have more mechanics to contend with in order to defeat them. The DeadK The Flux Construct 3 boss is the hardest and trickiest boss I’ve ever faced and in this guide I’m going to tell you how to beat it.

How to beat Flux Construct 3 in Zelda: Tears of the Kingdom

Screenshot of GameSkinny

We’ve already got it covered how to beat flux construct 1and I’ve found many of the same strategies to be applicable to fighting Flux Construct 3. However, there are some key differences.

TotK Flux Construct 3 Boss Fight Tips

The most important thing you need to know about the DeadK This is the boss fight in Flux Construct 3 At its core, you can damage movements.

Each version of this boss has a single core that glows green, and that’s the only part you can damage. The core moves about every 10 seconds in this variant, making it nearly impossible to pin down. But you have a secret weapon: Ultrahand. Ultrahand lets you grab the core and pry loosewhich gives you free damage for about 15 seconds.

You can also remove all other blocks that make up the body of the construct. However, once it is reassembled after a damage phase, all blocks return to their place. Keep in mind that dealing enough damage to the core can also cause the construct to fall apart, which many attacks and forms tend to do.

All Flux Construct 3 attacks and strategies in Tears of the Kingdom

Screenshot of GameSkinny

The DeadK Flux Construct 3’s boss uses many of the same attacks as the other variations of this opponent, but it changes things up enough that it’s annoying. Here are all the attacks (and their modifications) you can expect.

slam rush

As the boss’ opening attack, this attack breaks into component blocks and Flux Construct 3 charges at you. It hits the ground with its “hands”. Run sideways to avoid the damage, then charge back toward the core as it recovers on the ground. The Flux Construct 3 version of this attack is incredibly fast, and while you still have time to escape, you’ll need to be quicker on your feet this time.


At close to medium range, the boss raises his right arm and slams his “hand” down in a slightly less powerful attack than the Slam Rush. The winding head is quite long and the arm stays anchored to the ground. So when the core is in that arm, it’s easier to grab.

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If Flux Construct 3 reforms while you’re near it, it will stomp 3 or 4 times, creating a small shockwave like the Slam Rush. As before, you can avoid the attack by running away. The construct can’t move too fast when stomping, allowing you to freely grab the core or attack if you keep your distance.


The Flux Construct 3 flies into the sky and forms a platform that throws blocks at you while doing frankly ridiculous damage (this attack is Really annoying). In addition, there are two variants:

  • One version shoots down five of his blocks at once.
  • The other version does this in a sequence.

The sequence attack is easy to dodge: just run sideways until all five projectiles are fired. The simultaneous attack is much more difficult to avoid in my opinion.

The concurrent blocks have a minor but still noticeable amount of tracking. I died more times than I’d like to admit once I found out that this attack can be dodged just like the sequence. The key is that you have to move much faster. You could also run far enough to let the blocks run around you. In any case, use Spring Zonain devices to get airborne and attack from above.


The Flux Construct 3 forms into a giant cube and slowly rolls toward you. This attack isn’t dangerous from afar, but up close it can hit you with a single shot. The boss also tends to roll much faster as a block, requiring you to do more to keep your distance between the two of you.

Hopefully you have a better understanding of how to beat Flux Construct 3 Tears of the Kingdom. Check out our guides for more information on this massive game how to use stone talus hearts, how to upgrade and repair weapons with Octoroksand more inside our DeadK guides hub.

About the author

John Rubble

John Schutt has been playing games for almost 25 years, starting with Super Mario 64 and ending with every genre under the sun. He spent nearly four years writing under the Xiant moniker for strategy and satirical site TopTierTactics, and somehow managed to find time in between all the gaming to get an MFA in creative writing. His specialty is action games, but his greatest love will always be roleplaying. Oh, and his avatar is, was and always will be a squirrel, a trend he’s been following for as long as he’s had a Steam account and for some time before that.

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