Introduction

Hey adventurers! The Slayer skill has just received one of its most significant updates in years, completely revolutionizing how we approach task management. The old, rigid system of a single, universal block list is a thing of the past. Say hello to per-master block lists, a massive quality-of-life improvement that allows for unprecedented customization and efficiency.

This guide will walk you through everything you need to know about the new system. We'll cover the updated UI, the new point costs, and most importantly, provide strategic advice on what to block to maximize your XP rates and overall efficiency.

The Biggest Change: Per-Master Slayer Block Lists Explained

The core of the update is simple but powerful: every Slayer Master now has their own unique block list. You no longer need to spend a fortune in Slayer points re-jigging your list every time you switch from Duradel to Krystilia. You can set up an optimized list for each master and forget it.

When the update went live, all previous block lists were reset, and the points were fully refunded. This gives everyone a clean slate to work with.

The cost to block a task now varies depending on the master, encouraging thoughtful choices:

  • Turael/Spria: 40 Points
  • Mazchna: 50 Points
  • Vannaka: 60 Points
  • Chaeldar: 70 Points
  • Konar: 80 Points
  • Nieve/Steve: 90 Points
  • Duradel/Krystilia: 100 Points

Using the New Slayer UI to Your Advantage

Gone are the days of waiting for a terrible task just to spend 100 points blocking it. Every Slayer Master now has a "View List" button in their rewards interface.

This new screen is a game-changer. It shows:

  • Every NPC the master can assign.
  • The percentage chance of receiving each task based on your current setup.
  • The quantity of monsters you might be assigned.
  • A simple checkbox to block or unblock any task directly from this list.

This transparency allows you to craft the perfect block list from the get-go, saving time and frustration.

General Principles for an Efficient Block List

The goal of a block list is to eliminate tasks that are slow, unprofitable, or dangerous, thereby increasing the frequency of high-XP, high-profit tasks. The general rule is to block tasks with a high weighting that you never want to do, and skip tasks with a low weighting that are simply inconvenient.

Consider these factors when deciding what to block:

  • XP per hour: Is the task notoriously slow? (e.g., Wyrms, Drakes).
  • Location: Is the monster in a hard-to-reach or dangerous location?
  • GP per hour: Are the drops consistently poor?
  • Cannonable/Barrageable: Tasks that can be sped up with a cannon or ancient magicks are often worth keeping.

Sample Block Lists for High-Level Slayers (Duradel/Nieve)

For players chasing maximum experience, the block lists for high-level masters like Duradel and Nieve are crucial. While your personal preference matters, here are some of the most common and effective blocks for an efficiency-focused setup.

The New #1 Priority Block: Metal Dragons

With the recent update, bronze, iron, steel, mithril, adamant, and rune dragons have been consolidated into a single Metal Dragons task. Due to its combined high weighting, this is arguably the best block for almost every player. It frees up multiple slots and removes several slow tasks at once.

Other High-Priority Blocks for XP

Beyond Metal Dragons, these tasks are frequently blocked due to their slow XP rates and poor drops:

  • Wyrms: Low XP/hr and mediocre drops. A very common block choice.
  • Drakes: Similar to Wyrms, these are slow to kill and not particularly rewarding.
  • Spiritual Creatures: Found in God Wars Dungeon or the Wilderness, they can be slow and annoying to kill without specific gear.
  • Black Demons: While they can be cannoned, they are often blocked by players not interested in Demonic Gorilla tasks to make way for better tasks.
  • Cave Kraken: The boss is great for profit, but the regular Kraken task is considered very slow XP.

Krystilia (Wilderness Slayer)

Her list is now entirely separate. Focus on blocking tasks in dangerous multi-combat zones or those with low payoff. Fire Giants, Black Demons, and Greater Demons are common blocks if you are not using a cannon.

Impact of Cheaper Unlocks & Point Buffs

This update also made Slayer progression smoother for everyone. The cost for crucial unlocks like Bigger and Badder was slashed from 150 to just 50 points. Additionally, early-game masters like Mazchna and Vannaka now give significantly more points per task.

This means you'll have more points available sooner to customize your new per-master block lists without having to do endless Turael boosting.

Conclusion

The Slayer modernization update is a massive win for efficiency and quality-of-life. By embracing the new per-master block lists and utilizing the intuitive UI, you can tailor your Slayer experience to your exact goals. Block the newly consolidated Metal Dragons task, get rid of other slow monsters like Wyrms and Drakes, and enjoy a smoother, faster journey to 99 Slayer.

→ Eager to level up your Slayer skill without the grind? Check out our OSRS Skilling Services.

→ For a complete overview of the skill, read our OSRS Slayer Training Guide.

→ Want to know which tasks make the most money? Take a look at our guide on Profitable Slayer Tasks in OSRS.