OSRS Waterfiends Slayer Guide: Best Strategy, Gear, And Locations

In the realm of Gielinor, the Old School RuneScape (OSRS) Slayer skill serves as a gateway to some of the most profitable and challenging encounters in the game. Among the various assignments granted by Slayer Masters like Duradel, Nieve, and Konar, the Waterfiends task often sparks debate among the community. These elemental creatures, known for their high defensive stats and irritating attack styles, are frequently skipped by players seeking maximum efficiency. However, for those looking to diversify their experience or for Ironmen seeking specific secondary ingredients and herb seeds, understanding the nuances of a Waterfiends task is essential.

Waterfiends are level 115 combat NPCs that primarily inhabit watery environments, such as the Ancient Cavern and the Iorwerth Dungeon. They are unique in that they use two different combat styles—Ranged and Magic—making them a nuisance for players who prefer to "AFK" their tasks. Their high Hitpoints (128) and relatively high defense against most styles except for Crush and specific Ranged attacks mean that a task of 130 to 180 Waterfiends can take a significant amount of time. To master this task, one must balance protection prayers, high-accuracy equipment, and efficient movement within their multi-combat habitats.

Expert players often view Waterfiends as a "mediocre" task because their loot table lacks the high-value unique drops found in monsters like Gargoyles or Nechryael. However, they do offer a decent drop rate for Water Orbs, which are useful for battlestaff crafting, and Snape Grass seeds, which are vital for Herblore training. By approaching the task with the right mechanical knowledge, you can transform a tedious grind into a streamlined session that contributes significantly to your overall Slayer progression and bank value over time.

Primary Locations for Waterfiends

The most common location to encounter Waterfiends is the Ancient Cavern, situated deep beneath Baxtorian Falls. Accessing this area requires the completion of the "Barbarian Training" miniquest, specifically the portion involving Barbarian Firemaking and Smithing. To enter, players must leap into the whirlpool at the base of the falls while carrying a heavy rod or having the prerequisite training. Once inside, the cavern is a dangerous, multi-combat zone filled with Brutal Green Dragons and Mithril Dragons. The Waterfiends are located in the southern and western sections of the upper floor. Because it is a multi-combat zone, players can use a Cannon here to significantly speed up the task, though this increases the cost of the session.

For those who have completed the "Song of the Elves" quest, the Iorwerth Dungeon in Prifddinas offers a high-level alternative. This dungeon features Waterfiends alongside other Slayer monsters like Dark Beasts and Nechryael. The advantage of this location is the proximity to a bank and the chance to obtain Crystal Shards, which are invaluable for maintaining Blade of Saeldor or Bow of Faerdhinen. Unlike the Ancient Cavern, this area provides a cleaner environment with fewer high-level distractions, making it the preferred choice for high-level accounts looking to maximize their utility per hour.

Lastly, Waterfiends can be found in the Kraken Cove, though this location is less frequently used for standard Slayer tasks. The Kraken Cove is typically reserved for those hunting the Cave Kraken or the Kraken boss itself. However, if the main spots are crowded—which is rare given the unpopularity of the task—the cove serves as a viable backup. Regardless of the location, players must always be mindful of the Waterfiends’ aggressive nature and their ability to attack from a distance, which can lead to being swarmed if not positioned correctly near corners or obstacles.

Combat Mechanics and Protection Strategies

Waterfiends employ a dual-attack system that can shred through the health bars of unprepared players. Their Ranged attack resembles a small bolt of water, while their Magic attack looks like a larger, more swirling projectile. Interestingly, despite having two styles, they do not have a melee attack. This means that if you stand directly next to them, they will continue to cycle through Ranged and Magic. For most players, the most effective strategy is to wear gear with high Magic defense (such as Karil’s or Masori) and use the "Protect from Missiles" prayer. Their Ranged attacks tend to be more accurate and frequent than their Magic attacks, making Ranged protection the priority.

Because Waterfiends have a high Defense level, choosing the correct attack style is the difference between a 20-minute task and a 60-minute task. They are notoriously weak to Crush attacks. If you are using Melee, weapons like the Inquisitor's Mace, the Abyssal Bludgeon, or even the Zamorakian Hasta (on Crush mode) are significantly more effective than a traditional Abyssal Whip. If you lack these high-tier options, an Elder Maul or a Sarachnis Cudgel can suffice. The goal is to maximize your accuracy bonus to bypass their high natural defense, ensuring that your "DPS" (damage per second) remains high enough to make the task viable.

For players who prefer Ranged, the Toxic Blowpipe remains a solid choice, though the high defense of Waterfiends may lead to many "0s" if you are using low-tier darts. Using Amethyst or Dragon darts is highly recommended. Alternatively, the Bow of Faerdhinen with full Crystal armor provides enough accuracy to ignore their defensive stats almost entirely. Magic is generally not recommended unless you are using the Tumeken's Shadow, as Waterfiends have high Magic defense and the cost of runes usually outweighs any potential profit from the task.

Optimal Gear Loadouts

The gear you choose for a Waterfiends task should reflect your priority: speed, profit, or AFK capability. Below is a comparison of the most effective gear setups currently used in the OSRS meta.

When using the Melee setup, you should prioritize Strength bonuses alongside Crush accuracy. If you are using the Inquisitor's set, the set bonus provides a substantial boost to both accuracy and damage when using the Crush style, making it the undisputed "Best in Slot" for this specific task. However, since the Inquisitor's armor has relatively low defensive stats, you must be diligent with your Prayer management.

For the Ranged setup, the Crystal/BofA (Bow of Faerdhinen) combination is superior due to its infinite ammo (when charged) and massive accuracy. Waterfiends drop many stackable items, so having a Ranged setup allows you to stay in one spot and let the drops accumulate or use a Ring of Wealth to pick up the coins. If you are on a budget, the Blessed Dragonhide set provides a nice balance of Ranged accuracy and Magic defense, helping to mitigate the damage from the Waterfiends' secondary Magic attacks.

Profit and Loot Analysis

The financial viability of a Waterfiends task is often criticized, but for certain account types, it is quite beneficial. On average, a Waterfiend kill is worth approximately 1,200 to 1,500 GP. While this isn't high compared to monsters like Vorkath or Zulrah, the consistency of their drops is notable. They frequently drop Water Orbs (noted if using the Elite Fremennik Diary in the Ancient Cavern), which are a staple for players training Crafting. Additionally, they drop various herbs such as Avantoe, Snapdragon, and Torstol, along with high-level seeds.

Ironmen, in particular, find Waterfiends useful for the Snape Grass seed drops. Since Snape Grass is a primary ingredient for Prayer Potions, and the seeds can be difficult to source in large quantities elsewhere, a single Waterfiends task can net an Ironman enough seeds to sustain their potion production for a significant period. Furthermore, the chance of receiving a Mist Battlestaff (1/128 drop rate) provides a nice alchemical value or a useful utility staff for teleporting.

In terms of XP, Waterfiends are respectable but not elite. You can expect around 25,000 to 35,000 Slayer XP per hour depending on your gear and whether you use a Cannon. If you are purely hunting for XP, Waterfiends are generally considered a "skip" or a "block" because they take longer than tasks like Dagannoths or Suqahs. However, if you are looking to maximize your "Combat Achievements" or are pushing for 99 Slayer without spending millions on skips, completing the task efficiently is a better alternative than wasting points.

Pros and Cons of the Waterfiends Task

Pros:

• High Seed Yield: One of the best sources for Snape Grass and medium-to-high tier herb seeds.
• Crush Weapon Training: Provides a practical use for Crush-specific weapons that often sit in the bank.
• Relaxed Environment: Usually uncrowded, allowing for a peaceful Slayer session compared to the chaos of the Catacombs of Kourend.
• Crystal Shards: When killed in the Iorwerth Dungeon, they contribute to your Crystal Shard stack.

Cons:

• High Defense: They can be frustratingly tanky, leading to slow tasks if your stats are below level 80.
• Dual Attack Styles: Requires constant use of Prayer Potions or high Magic defense gear, increasing the cost per task.
• Poor Unique Drops: Lacks a "big ticket" item like an Abyssal Whip or a Dragon Boots drop.
• Annoying Mechanics: Their Ranged/Magic projectiles can make it difficult to see what is happening in a crowded multi-combat zone.

Step-by-Step Guide: How to Efficiently Complete the Task

1. Preparation: Check your Slayer Master for the task amount. Ensure you have your Slayer Helmet (i) for the 16.67% damage and accuracy boost. Withdraw a Crush-based weapon and your best Magic defense armor.
2. Inventory Setup: Pack 3-4 Super Combat or Ranging Potions, 10-12 Prayer Potions, a one-click teleport, and a Cannon with 1,000+ Cannonballs if going to the Ancient Cavern. If you are an Ironman, bring an Herb Sack and a Seed Box.
3. Travel: Use the Games Necklace to teleport to Barbarian Outpost, then run south to the whirlpool. Ensure you have a light source if you haven't completed the Firemaking portion of the Barbarian Training.
4. Positioning: Set up your Cannon in the center of the Waterfiend area. Stand near a wall to minimize the number of Waterfiends that can attack you at once, or "flick" your prayers if you are feeling mechanically confident.
5. Execution: Keep "Protect from Missiles" active at all times. Use your special attack (such as the Dragon Warhammer or Bandos Godsword) to lower the Waterfiend's defense at the start of the task to speed up the first few kills.
6. Looting: Focus on stackables and high-value seeds. If using a Ring of Wealth, the coins will be collected automatically. Don't forget to pick up the Water Orbs, as they add up to a significant portion of the task's profit.

FAQ

Q: Should I skip or block Waterfiends? A: If you are focused strictly on XP/hour, Waterfiends are a common "skip." However, due to their high weighting from Duradel, some players choose to "block" them if they have no interest in the loot or the combat style.

Q: Can I use a Dragon Defender against them? A: Yes, if you are using a one-handed Crush weapon like the Inquisitor's Mace or Zamorakian Hasta, the Dragon Defender is the best off-hand for the accuracy and strength boost.

Q: What is the best prayer for Waterfiends? A: "Protect from Missiles" is the most effective prayer. While they do use Magic, their Ranged attacks are more frequent and generally deal more consistent damage.

Q: Are Waterfiends aggressive? A: Yes, they are aggressive to players within a certain combat range. In the Ancient Cavern, you will likely be attacked immediately upon entering their zone.

Q: Do I need a specific Slayer level for Waterfiends? A: No, there is no specific Slayer level required to kill Waterfiends, but you must be assigned them by a Slayer Master to gain Slayer XP.

Mastering the Waterfiends task is a rite of passage for many mid-to-high level OSRS players. While they may not offer the glamour of a boss task, their contribution to your resource stack and Slayer points cannot be ignored. By utilizing the Crush weakness and positioning yourself correctly in the Ancient Cavern or Prifddinas, you can turn this often-avoided task into a fast and profitable part of your Slayer rotation. Gear up, head to the whirlpool, and show these elemental spirits the power of a well-placed mace!