OSRS: Best Slayer Tasks to Block for Faster XP and More Fun

Achieving 99 Slayer in OSRS is a lengthy journey that typically takes years for most players. Using the block list wisely helps avoid slow, boring, or low-reward tasks so you can maximize XP and enjoy your time training Slayer.

Understanding the Block List

·You start with 5 block slots for unwanted tasks.

·Unlock the 6th slot at 300 Quest Points.

·Unlock the 7th slot after completing the Lumbridge Elite Diary.

·Block tasks by paying 100 Slayer points to your Slayer Master (Duradel or Kuradel if you've completed While Guthix Sleeps).

·Blocking bad tasks makes your Slayer grind more efficient and less frustrating.

Top Tasks to Block (Assuming 7 Slots)

1. Hellhounds

·Slayer Weight: 10 (High chance of assignment)

Why Block:

·Single-target with low XP/hour.

·No useful drops aside from rare clues or smoldering stones.

·Expensive supplies for slow XP; better to focus on multi-target tasks.

2. Cave Krakens

·Slayer Weight: 9

Why Block:

·Must use single-target magic (e.g., Trident of the Swamp), making kills slow.

·Drops are poor and OSRS Gold overall.

3. Black Dragons

·Slayer Weight: 9

Why Block:

·Requires expensive Dragon Hunter Lance for speed.

·Required to buy OSRS items: Anti-dragonfire gear/potions.

·Small task size (10-20 kills), not ideal for fast XP farming.

4. Greater Demons & Black Demons

·Slayer Weight: 9 (Greater), 8 (Black)

Why Block:

·Single-target and slow to kill.

·Poor loot and large task size (130-200 kills) mean a long, boring grind.

·Crowded worlds, often with PvP interference.

5. Spiritual Creatures (God Wars Dungeon)

·Slayer Weight: 7

Why Block:

·Annoying to access and deal with God-aligned monster aggression.

·Terrible loot table.

·Not worth the hassle unless farming Dragon Boots or for an achievement.

·Many players block these tasks permanently.

6. Steel Dragons

·Slayer Weight: 7

Why Block:

·High defense and deadly melee + dragonfire attacks.

·Small task size, so many trips for full task completion.

·Weak to Earth spells (post-rebalance), but still slow kills and poor profit.

·Better Slayer tasks give more XP per hour.

Why Block These Tasks?

1. Focus on Multi-Target & Fast XP Tasks

Monsters like Dust Devils or Nechryaels allow multi-target AoE spells like Ice Burst/Barrage, letting you train Slayer faster and make more money.

2. Maximize Slayer Points Efficiency

Block slow or boring tasks to increase chances of getting good ones, especially when using Task Extensions from your Slayer Master.

3. Reduce Burnout

Slayer is a marathon-don't waste time on tasks you hate or that offer poor rewards.

Final Tips

·Consider blocking only high-weight tasks with poor XP or loot to maximize your benefits.

·Keep tasks that drop items you need or tasks that are AFK-friendly if you prefer less active play.

·Always have a Slayer Master who offers task extensions to prolong your best tasks.

·If you're an Ironman, some demon tasks might still be worthwhile for unique drops.

Mastering your block list alongside efficient Slayer strategies will make your grind to 99 Slayer smoother, more profitable, and a lot more enjoyable.