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Monster Hunter Wilds Rey Dau weaknesses, tips, and strategies

Guides
By Joel Franey last updated 3 March 2025

The Rey Dau is a deadly lightning dragon and Apex Predator of the Plains in Monster Hunter Wilds

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Monster Hunter Wilds beta and trailer screenshots
(Image credit: Capcom)
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Battling the Monster Hunter Wilds Rey Dau is a challenge but knowing it's weaknesses and how to overcome its electrical attacks will help massively. Fighting Rey Dau represents a hefty difficulty spike in Monster Hunter Wilds too, so if you're struggling or want to prepare, it's a good idea to familiarize yourself with all its vulnerabilities, such as its head weak point, and learn our tips to form an overall strategy for beating this beast. Here's everything you need to know about when it comes to slaying Rey Dau in Monster Hunter Wilds, including its weaknesses and an array of tips to help you survive.

All Rey Dau weaknesses in Monster Hunter Wilds

Monster Hunter Wilds Rey Dau

(Image credit: Capcom)
More Monster Hunter Wilds guides

Monster Hunter Wilds tips
Monster Hunter Wilds best armor
Monster Hunter Wilds weapons
Monster Hunter Wilds Chatacabra

The Rey Dau is a three star difficulty hunt target in Monster Hunter Wilds, and it was originally the most difficult monster that you could fight during the Beta. To defeat it, you'll need a mixture of speed, long-term survivability, and an understanding of how to de-power its electrical state in which it channels its most powerful attacks. Rey Dau represented the "final boss" of the beta, and is a good way to truly test your skills against what looks to be one of the toughest creatures in MH Wilds so far.

With that in mind, here's some tips, tricks and exploitable weaknesses to use against Rey Dau, so you can formulate a proper strategy.

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  • Rey Dau is weak to Water and Ice elements. It's resistant to Thunder, Sonic Bombs and the Shock Trap, however.
  • Its main weak point is the head, it takes more damage here than anywhere else.
  • It's also vulnerable to Grounding Pods. These slinger projectiles remove its electrical charge.
  • Shatter the crystals on its wings. Doing so shuts down its ability to channel electric power for a while.
  • The tail can be severed, though this doesn't do a huge amount to limit its offensive power and is more about rewards for carving.
  • Hit the head when it glows red with a focus strike. Just before or after certain lightning moves, Rey Dau's head glows red, which means you can hit it with a focus strike as if it were an open wound. This interrupts the attack and does massive damagee
  • Play for time and survivability. The Rey Dau has a massive health pool, so you can't breeze in and deal with it quickly. Equip yourself with lots of health potions and prepare for a long fight.

Monster Hunter Wilds Rey Dau

(Image credit: Capcom)
  • If it charges energy around its mouth, run to the side! The Rey Dau's most powerful attack is a beam of electricity fired from its mouth that explodes in a large radius when it hits a target. If you're caught in it, you have to be close to full health to survive. For the best chance at avoiding it, strafe to the left or right to circle around the big wyvern and roll at the last second.
  • When in danger, stay underneath it. There's no section of the Rey Dau that's safe to be around, but the easier, weakest attacks are generally targeted at foes standing between its legs.
  • Thunderblight is a peril to take seriously. Rey Dau's attacks can inflict Thunderblight, which is cured either by a Nulberry, or rapidly evading until it wears off. Thunderblight leaves the player more vulnerable to being stunned - which is very dangerous in circumstances like these.
  • Bring in friends! Rey Dau is a potent threat, so firing off an SOS Flare is a very good idea if you're having trouble. Whether you're working with random players or hooking up with friends in the Monster Hunter Wilds multiplayer system, having allies distracting and impeding it is far more effective than going at it with a Palico sidekick.

If you want to know more weaknesses, we've actually got all of them listed in a handy table on our Monster Hunter Wilds weaknesses page, the ultimate reference for victory!

Take a look at our Monster Hunter Wilds review, where we described it as "The new peak of the series and an early contender for game of the year". Or to understand the grander cast of foes, check out the Monster Hunter Wilds full roster!

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Joel Franey is a writer, journalist, podcaster and Very Tired Man with a BA from Brunel University, a Masters from Sussex University and a decade working in games journalism, often focused on guides coverage but also in reviews, features and news. His love of games is strongest when it comes to groundbreaking narratives like Disco Elysium, UnderTale and Baldur's Gate 3, as well as innovative or refined gameplay experiences like XCOM, Sifu, Arkham Asylum or Slay the Spire. He is a firm believer that the vast majority of games would be improved by adding a grappling hook, and if they already have one, they should probably add another just to be safe. You can find old work of his at Eurogamer, Gfinity, USgamer, SFX Magazine, RPS, Dicebreaker, VG247, and more.

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