Monster Hunter Wildsadded Arch-Tempered Rey Dau as part of Title Update One on June 28, 2025. Arch-Tempered monsters are high-difficulty variants of normal monsters and much stronger than Tempered monsters.

However, the part that makes Arch-Tempered Monsters amazing is that they have new moves and new armor sets, which open up more build options for players. If you’re interested in taking on a shocking challenge and fighting the Arch Tempered Rey Dau, this guide will cover all the necessary details.

Arch Tempered Rey Dau quest selection screen in Monster Hunter Wilds.

How To Unlock Arch-Tempered Rey Dau

You’ll need tounlock the quest A Silent Flash to fight Arch-Tempered Rey Dau. This is thethird eight-star difficulty questafter High Rank Zho Shia and Tempered Arkveld. This means you should be prepared for a really difficult fight.

There is no additional requirement to this quest apart fromreaching Hunter Rank 50. This meansyou’ll have to finish the main story of the gameand complete most of the Main Assignments, apart from High Rank Zho Shia.

Arch-Tempered Rey Dau detailed info on the left in Monster Hunter Wilds.

Reaching Hunter Rank 50 isn’t too hard, and you can go there within a day or two at most. The hard part is getting a build ready that will let you survive Arch-Tempered Rey Dau.

Here are the strengths and weaknesses of Arch-Tempered Rey Dau:

Dragon Piercer bow build showcase with armor pieces on the left and skills on the right in Monster Hunter Wilds.

Best Weapon Damage

Ice is the most effective element against Arch-Tempered Rey Dau, and if you’re using a melee weapon such as Long Sword or Dual Blades, try to bring this element into the fight. If you don’t have any Ice setup yet, thenDragon and Water are also good choices.

When it comes to Raw Damage weapons,Bow is incredibly effective, since you can play from a distance and stay safe from most of the new moves, while dealing a lot of damage.

Arch Tempered Rey Dau falling into a pit and being catured in Monster Hunter Wilds.

As for the monster,Rey Dau’s face is a weak point, where you canget guaranteed wound damageafter it does the powerful Lightning attack. Apart from that,cutting off its tail can be beneficial, since it will make it easier for you to fight from the back, where it cannot slam you.

Breaking the tail with a melee weapon will be difficult, since Arch-Tempered Rey Dau can one-shot you if you get hit by the tail slam. However, if you use a Dragon Piercer Bow, then breaking the tail will be a lot easier.

Arch Tempered Rey Dau drops in Monster Hunter Wilds.

When it comes to weapons,Long Sword will be your best choice for an Elemental Setup. You cancraft an Artian Long Sword with triple Ice Boost, which will help you massively during the fight. If you don’t have an Artian Long Sword,you can also use the Hirabami Long Sword.

As for the Bow,a Dragon Piercer setup with the Griefbringer Urstoxis perfect for this fight. All you need to do is get your dodges right, and spam Dragon Piercer on the monster, and it will end up dead in no time.

If you don’t have any Ice setup, you cancraft the Mizutsune Long Sword, since Water is also pretty good against Arch-Tempered Rey Dau.

Armor is a vital part of preparing for the Arch-Tempered Rey Dau, as it’s not like other fights where you can ignore Resistances. The standard Rey Dau armor set or the Zho Shia Armor set providesa lot of Thunder Resistance, which will help you survive and prevent Thunderblights.

If you use the combination of Arkveld and Gore Magala sets, which is the meta for the highest damage output, you’ll need toslot in a few Thunder Res Jewels for added protection. The Arkveld and Gore Magala combined set has negative Thunder Resistance, and that is a dangerous gamble to bring in this fight.

Arch-Tempered Rey Dau - Fight Breakdown And Moves

TheArch-Tempered Rey Dau fight has all the moves of the original, but there are a few changes that you must be aware of. The first major change you will notice is thatevery move by Rey Dau now leaves a trail of Lightning in its path.

This means, even if you dodge the first move, you can still get hit by the trail, so it’s important to adjust yourself to the timing of the moves.

Gunlance and Sword n Shield players must be careful, as they shouldkeep blocking even after the first hit goes through.You don’t want to get caught by the Lightning Trail since it deals a lot of damage.

The two powerful moves that are signature to Rey Dau, namely theLightning beam that it shoots either from the air or when on the ground, are still there.

However,those moves have been significantly empowered, where they willone-shot you regardless of your defenses. They also have a muchlarger Area of Effect, so you must start running when you see Rey Dau charging its Lightning beam.

There’s a second new move, whereRey Dau will fly in the air and shoot a Lightning Charge underneath its body vertically. This move comes out very fast, and it will catch those players off guard who attempt to spam attacks from below the monster’s body. Thismove will also one-shot youif it hits you directly.

Finally, the move where Rey Dau would fly high up in the air and slam its wings has also been altered a bit. Theslam is now even more delayed than before,and it will one-shot you if it hits. As such, it’s important to learn the timing of this one as well.

Flash pods are extremely effective against Arch-Tempered Rey Dau, as you can interrupt most aerial moves. Themonster also has increased resistance to wounds, so you will produce fewer of those, which means much less downtime than normal Rey Dau.

You can also capture Arch-Tempered Rey Dau, so bring a few traps with Tranq Bombs, if you want to end the fight quicker.

Arch-Tempered Rey Dau Drops And Materials

Here are all the drops you receive upon defeating Arch-Tempered Rey Dau: