In the latest update for Monster Hunter Wilds, a significantly stronger variant of the Sands’ Apex, known as the Arch-Tempered Rey Dau, has been introduced. This formidable adversary presents a challenging, taxing battle that will push your endurance to its limits, even when wearing the top-tier armor and wielding optimal weapons. It packs a punch and sports a health pool larger than any other monster currently found in Wilds.
Here’s a guide on how to take down this Arch-Tempered Apex of the Sands and Lightning:
Equip the Best Armor & Weapons
Preparing the strongest armor is a crucial initial move to prevent being instantly defeated by its powerful railgun attacks. If you’ve been playing Wilds since its debut, you’re already accustomed to the characteristics of Rey Dau. Given that it’s vulnerable to Ice and Water, weapons from Jin Dahaad (Ice) and Uth Duna (Water) are both effective options.
In terms of armor selection, focus on shielding against lightning. For instance, Rey Dau’s armor performs well in this regard, but the choice ultimately depends on your personal preference. At present, resistance stats aren’t heavily influential in The Wilds, so any fully upgraded armor set will suffice for optimal defense.
Stock Up on Nullberries
The Improved Rey Dau doesn’t introduce groundbreaking new abilities, but it’s swifter now, and its electrical attacks create an ongoing series of lightning aftershocks. You might assume you’re secure following the avoidance of a railgun blast, only for it to detonate again seconds later, sometimes even a third time.

Being struck by any of its electrical attacks will trigger a condition called “Thunderblight,” raising the likelihood of becoming stunned. Make sure to accumulate plenty of Nullberries, using them promptly once Thunderblight has been activated on you.
Learn Its Moves
The “Arch-Tempered Rey Dau” is tough against injuries, so you won’t frequently see the pleasing red outline for a Focus Attack. However, being a Tempered beast, it does have certain vulnerable spots that can be injured; it just takes longer to do so. When you finally manage to breach its defenses and execute a Focus Attack, the feeling of success is extremely rewarding.

New maneuvers of this entity are risky, yet experienced Hunters ought to be accustomed to the timing essential for dodging or parrying. Its deadliest innovation is the amplified lightning surge, which could almost certainly result in a knockout if one finds themselves ensnared by it.
Arch-Tempered Rey Dau – Rewards
Capturing or defeating the Arch-Tempered Rey Dau grants you the new Rey Dau Certificate γ, an essential component for crafting the improved Rey Dau Armor set γ. This upgraded armor boasts increased Latent Power and superior defense statistics compared to its predecessor.
Your Palico also gets access to a new set of armor and weapons crafted from this monster’s parts.
To advance your Power Charm to level 3 and Defense Charm to level 5, you will also need the Rey Dau Certificate γ.

Here’s how you defeat the Arch-Tempered Rey Dau, the first Apex monster to get an Arch-Tempered upgrade. More monsters with this upgrade, such as Lagiacrus, will be introduced in future updates.
For more Monster Hunter Wilds coverage, check out Gfinity.
READ: Monster Hunter Wilds: Ranking the 14 New Monsters by Their Combat Thrill
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2025-04-30 12:42