OSRS: How to Solo Dagannoth Rex

Dagannoth Rex is one of the three Dagannoth Kings located in the Waterbirth Island Dungeon in Old School RuneScape (OSRS). While each of the Dagannoth Kings (Rex, Prime, and Supreme) have different combat styles, Dagannoth Rex is generally considered the easiest to solo due to his low Magic Defence, allowing players to use Magic attacks with ease. Soloing him can be highly rewarding, as he drops valuable items like the Berserker Ring and Dragon Axe, and guarantees Dagannoth Bones on every kill.

Here's a comprehensive guide on how to solo Dagannoth Rex, including equipment recommendations, strategies, and tips.

1. How to Find Dagannoth Rex

Dagannoth Rex resides in sublevel 6 of the Waterbirth Island Dungeon, alongside the other two Dagannoth Kings: Dagannoth Prime (Ranged) and Dagannoth Supreme (Melee). To reach this location:

Complete the Fremennik Trials quest: This is required to access Waterbirth Island. After completing the quest, you can speak to Jarvald in Rellekka to travel to the island via boat.

Waterbirth Teleport: If you've unlocked the Lunar Spellbook, you can use the Waterbirth Teleport spell to quickly get there.

Once you reach Waterbirth Island, go through the dungeon, heading down ladders until you reach the Kings' Ladder. You will enter the room containing the three Dagannoth Kings.

If you're on a Slayer task, you can right-click the ladder to enter the Slayer-only room, which isolates the Dagannoth Kings from any other players.

2. Suggested Levels and Equipment

To effectively solo Dagannoth Rex, you'll want to be properly equipped and have suitable stats. Here's a breakdown:

Recommended Stats:

60 Defence (for basic safety against attacks).

60 Hitpoints (to improve your survivability).

70 Defence (preferred for Guthan's Armor set, providing passive healing).

50+ Magic (minimum to be able to deal decent damage to Rex).

Recommended Gear:

Since Dagannoth Rex has a high Ranged Defence, your best option is Magic, as Rex has a low Magic Defence.

Best Magic Setup:

Ahrim's Robes or Karil's Crossbow (if you prefer Ranged)

Staff of the Dead (best for offensive power)

Iban's Blast or Slayer Dart (alternative spells that can hit hard)

Ancient or Blood Spells (for healing, if you can afford it)

Alternative Setup for Long Trips:

Guthan's Armor:

Full Guthan's set (for random healing on hits, especially against Spinolyps).

Melee weapon (e.g., ZGS, Whip, or Saradomin Sword).

Protection Prayer: Protect from Magic and Mystic Might are helpful for defensive purposes.

Other Essentials:

Prayer: Protecting from Magic is critical to reduce damage taken from Rex and the other kings.

Food: High-healing food such as Sharks, Saradomin Brews, or Anglerfish.

Potions: Prayer potions, Super Restore potions, and Magic potions (or Overload if available).

Antipoison (in case you're attacked by Spinolyps).

3. Soloing Strategy

Step-by-Step Solo Strategy:

Enter the Boss Room:

Upon entering the Dagannoth Kings' Room, your first task is to isolate Dagannoth Rex. As soon as you enter, you'll encounter the other Dagannoth Kings (Prime and Supreme), who use Ranged and Melee, respectively.

Luring Rex:

Run to the Right Side: As you enter, sprint to the far right side of the arena to try and avoid aggroing the other Kings.

Aggro Reset: If you accidentally aggro another King, you'll need to reset the aggression. Simply exit the room by climbing back up the ladder and wait for around 30 seconds before re-entering. The Kings will reset their aggression.

Setting Up Safespot:

Once Dagannoth Rex is alone, get him to the southeast corner near the piles of bones. This area allows you to save him without Rex being able to hit you, as long as you stand near the bones.

Ensure that you're positioned so that Rex cannot reach you from his starting position.

Using Magic to Attack Rex:

Equip a high-damage Magic weapon like Iban Blast, Slayer Dart, or Ancient Magic for optimal damage.

Activate Mystic Might for a 5% boost to Magic damage, and Protect from Magic to significantly reduce Rex's damage.

Keep attacking him with your chosen spells until he falls.

Dealing with Spinolyps:

While fighting Rex, you'll constantly be attacked by Spinolyps. These creatures deal decent damage but can be dealt with using melee. If you're using Guthan's set, you can kill these Spinolyps for passive healing.

Alternatively, you can use a Ranging weapon or Magic spells like Fire Surge to hit multiple Spinolyps at once.

Healing and Prayer Management:

Keep a close eye on your Prayer points to ensure Protect from Magic stays active.

Use Prayer Potions as necessary to maintain your protection prayer.

If you're using Blood spells, healing becomes easier, reducing the need for food.

4. Tips and Tricks

Use Protect from Magic: You must keep Protect from Magic active, as this will greatly reduce the damage taken from Rex and the other Dagannoth Kings while you set up your safe spot.

Check for Other Players: If you find yourself in a busy world, try to enter a dead world or a high-level Slayer task world, as you can fight Rex without interference from other players.

Boost Magic Damage: If possible, consider boosting your Magic using Magic potions or Mystic Might prayer for added damage.

Keep Prayer Up: Be sure to monitor your Prayer points closely and bring enough Prayer potions to extend your trip.

Antipoison: Spinolyps may poison you, so always bring an Antipoison potion.

5. Loot and Rewards

Dagannoth Rex drops a wide variety of valuable items, including:

Berserker Ring (rare, provides a significant strength bonus).

Dragon Axe (useful for woodcutting and a decent drop).

Dagannoth Bones (valuable on the Grand Exchange).

Ring of Wealth: Increases your chances of receiving rare drops.

Other Common Drops: Coins, Dragon Bones, Herb Drops, and Rune Items.

Each kill guarantees Dagannoth Bones, which can be sold on the Grand Exchange for a good profit.

Conclusion

Soloing Dagannoth Rex can be a highly rewarding and profitable endeavor in Old School RuneScape. With the right gear, strategy, and preparation, you can take down this fearsome boss with ease. The Berserker Ring, Dragon Axe, and other valuable drops make Rex a highly sought-after target, and with practice, you can increase your kills per hour and maximize your rewards.

Key drops, such as the Berserker Ring, Dragon Axe, and Dagannoth Bones, offer lucrative returns, making Rex a top target for solo players looking to make significant profits. With practice and optimization of your strategy, you'll be able to increase your efficiency and further maximize your rewards. Whether you're seeking OSRS Gold, valuable OSRS items, or simply the thrill of taking on one of the game's toughest bosses, Dagannoth Rex is a great option for both beginner and experienced players alike.