OSRS Slayer Guide 1–99: Block Lists for Nieve and Duradel

Overview

Train Slayer by moving up masters as your Combat level allows: Turael or Spria first, Mazchna at 20 Combat, Vannaka at 40, Chaeldar at 70, Konar at 75, Nieve at 85 and Duradel at 100 Combat with 50 Slayer. Spend your first points on blocks, then Bigger and Badder (50 points) and the Slayer helmet (400 points, 55 Crafting). Slayer also gates several of the best bosses and pays for itself through drops.

It is also the skill where decisions matter most. Which master you use, what you block, what you extend and when you spend points changes your XP per hour far more than your combat gear does.

The sections below go through every master and its requirement, block lists for Nieve, Duradel and Mortimer, the unlock order that helps, and the task-specific gear you cannot skip.

Slayer Block List for Nieve, Duradel and Mortimer

Since 27 August 2025 each master has kept its own block list, except Turael, Aya and Spria, who share one. You get one block slot per 50 quest points, up to six at 300, and a seventh for the elite Lumbridge & Draynor Diary. A block costs 80 points at Konar, 90 at Nieve or Steve, 100 at Duradel and 120 at Mortimer, who only has two slots. Block the bad tasks with the highest weight first, because they come up most often.

Nieve also assigns brine rats (weight 3), scabarites (4), turoth (3) and custodian stalkers (8), which Duradel does not, and Duradel adds waterfiends (2). Custodian stalkers are the only one of those with enough weight to be worth a slot if you dislike them.

Do not spend a slot on lizardmen or TzHaar. Lizardmen are a fast cannon task, and a TzHaar task can be cancelled by entering and leaving the Fight Caves. Both are toggled unlocks, so if you want them gone, switch the toggle off instead (turning it back on costs the points again).

Mortimer works differently: two slots at 120 points, and you already pick from two or three tasks. His block list is in our Mortimer guide.

Quest and Diary Unlocks That Change the Route

Slayer's gating is mostly combat level and quest access to masters. These are the unlocks that change which tasks you can take and how fast you clear them.

Recommended Equipment and Boosts

Slayer gear splits into two groups: the protections a task requires, and the weapons that make specific monsters fast. The Slayer helmet collapses the first group into one item.

Level-by-Level Training Table

Slayer levels come from tasks, so the route is really a sequence of masters. Move up as soon as your combat level allows, since higher masters give better XP and better drops.

Fastest Route

Fast Slayer is Duradel tasks with a tuned block list, the right task-specific weapon every time, and points spent on extensions rather than saved.

1. 1

   Spend your first points on blocks, then Bigger and Badder at 50 points, then the Slayer helmet unlock at 400 points (55 Crafting).

2. 2

   Build combat level toward 100 so Duradel becomes available; he is a large step up from every other master.

3. 3

   Block the high-weight tasks that stay slow whatever weapon or location you use.

4. 4

   Extend the tasks that are fast and profitable so you spend more time on them per assignment.

5. 5

   Keep every task-specific item in a dedicated bank tab:

   leaf-bladed weapons, rock hammer, salt, spray, shield.

6. 6

   Use a cannon on high-count tasks where the ball cost is worth the time saved.

7. 7

   Pay 30 points to skip a task you dislike.

   A Turael skip costs no points but resets your streak to zero.

8. 8

   Wear the bonecrusher necklace so Prayer trains itself in the background.

Cheapest and Most Affordable Route

• Slayer funds itself. Drops from tasks generally cover supplies, which makes it one of the few skills that pays while you level.
• Skip the cannon if the ball cost outweighs the time saved for your account.
• Use Konar for brimstone keys when you want income rather than raw XP.
• Save blocks for high-weight tasks you never want; at 90 to 100 points each a block costs about three skips.
• Buy the Slayer helmet unlock before any cosmetic or convenience unlock.
• Use the bonecrusher necklace so you are not paying for Prayer training separately.

AFK and Low-Intensity Route

• Slayer is not AFK, but some tasks are close. Large-count low-danger tasks with a safe spot let you settle into a rhythm.
• Cannon-assisted tasks reduce your clicks per kill considerably on high-count assignments.
• Avoid superior slayer monsters when you want low attention. They hit hard and appear without warning.
• Boss tasks are the opposite of AFK; save those for sessions where you are focused.
• If you want genuinely low-attention combat XP, Slayer is the wrong skill for that session.

Profitable Route

• Slayer is one of the most profitable skills in the game, and task drops are the main reason to train it.
• Konar's location-locked tasks drop brimstone keys, which is a reliable income stream at 75 combat.
• Superior slayer monsters, unlocked with Bigger and Badder for 50 points, drop the imbued heart, eternal gem and mist and dust battlestaves.
• High-level tasks feed directly into boss gear: many upgrades come from Slayer monsters rather than bosses.
• Duradel tasks combine the best XP with strong drop tables, which is why they carry most of the late skill.
• Krystilia's Wilderness tasks have a distinct reward table, but you are accepting PK risk as part of the method.

Ironman Route

• Slayer is arguably the most important skill on an Ironman account, because it is where most of your gear comes from.
• Prioritise the Slayer helmet unlock; it saves bank space and removes the item-hunting overhead entirely.
• Unlock Bigger and Badder (50 points) early. Superiors are the only source of the imbued heart and eternal gem.
• Use the bonecrusher necklace to train Prayer passively instead of farming bones separately.
• Let tasks supply your herbs, seeds and secondaries rather than making dedicated gathering trips.
• Block fewer tasks than a main would; you often want the drops from tasks a main considers a waste of time.

Common Mistakes

• Grinding Slayer before buying the Slayer helmet unlock at 400 points.
• Staying on a lower master after your combat level qualifies you for the next one.
• Using Turael skips without realising each one resets your streak to zero.
• Fighting task monsters without the task-specific weapon, which can multiply your kill time.
• Forgetting a required protection item and travelling back for it.
• Hoarding Slayer points instead of buying extensions on the tasks you actually farm.
• Not wearing the bonecrusher necklace and then training Prayer separately later.
• Skipping Priest in Peril, Lost City or Shilo Village and locking yourself out of the better masters.

Useful Plugins

1. 1

   Slayer

   : tracks your task, remaining count and required items.

2. 2

   NPC Indicators

   : highlights task monsters in crowded areas.

3. 3

   Bank Tags

   : one tab per task type so gear switches take seconds.

4. 4

   Menu Entry Swapper

   : removes misclicks in dense multi-monster areas.

5. 5

   Loot Tracker

   : shows what a task is actually worth to you.

6. 6

   Special Attack Counter

   : useful on tasks where you are weaving specs into kills.

FAQ

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