OSRS Nieve/Steve Slayer Master Guide: Tasks & Blocks

Nieve (or Steve after Monkey Madness II) is one of the most popular Slayer masters in Old School RuneScape. Known for assigning high XP tasks with great GP/hour potential, she is the primary Slayer master for mid-to-high-level players progressing towards 99 Slayer and endgame PvM.

Players can receive Slayer reward points for completing Slayer tasks--this is based on how many tasks players have accomplished in a row. Completion of a task assigned by Nieve will grant you a varying number of points, depending on whether players have completed the Elite Western Provinces Diary, which is increased to match those of Duradel.

Location

Tree Gnome Stronghold

• Use Ring Of Wealth to teleport to Grand Exchange and use Spirit Tree teleport to Slayer Cave, and you will find Nieve/Steve Slayer Master.
  

Who are Nieve and Steve?

• Nieve: Located west of the Tree Gnome Stronghold bank.
   

• Steve: Replaces Nieve after completing Monkey Madness II, found in the same spot.
  

Both have identical task lists, with Steve's dialogue and model being the only difference post-quest.

Requirements

•   Combat level: 85+
  

This makes Nieve/Steve the go-to master once you outgrow the Chaeldar Master Guide for fast Slayer XP.

Nieve/Steve Slayer Task List (Block or Do)

Monster	Amount	Unlock requirement	Do or do NOT
Aberrant spectres	120-185	60, 65, completion of Priest in Peril
Abyssal demons	120-185	85  85, completion of Priest in Peril   or Fairytale II - Cure a Queen
Adamant dragons	3-7	Completion of Dragon Slayer II
Ankou	50-90	40
Araxytes	40-60	92, Completion of Priest in Peril
Aviansie	120-185	Unlocked the Watch the birdie ability via spending 80 Slayer reward points
Basilisks	120-185	40 unlocked the Basilocked ability via spending 80 Slayer reward points
Black demons	120-185	80
Black dragons	10-20	80, partial completion of Dragon Slayer I
Bloodveld	120-185	50, 50, completion of Priest in Peril
Blue dragons	120-185	65, partial completion of Dragon Slayer I
Boss	3-35	Unlocked the Like a boss ability via spending 200 Slayer reward points, as well as various requirements for specific bosses
Brine rats	120-185	47,  45, completion of Olaf's Quest
Cave horrors	120-180	58   85, completion of Cabin Fever
Cave kraken	100-120	87 , 80, 50
Dagannoth	120-185	75, completion of Horror from the Deep
Dark beasts	10-20	90, 90, partial completion of Mourning's End Part II
Drakes	30-95	84
Dust devils	120-185	65 70, partial completion of Desert Treasure I
Elves	60-90	70, completion of Regicide
Fire giants	120-185	65
Fossil Island Wyverns	5-25	66,  60, completion of Bone Voyage   and Elemental Workshop I
Gargoyles	120-185	75 80, completion of Priest in Peril
Greater demons	120-185	75
Hellhounds	120-185	75
Iron dragons	30-60	80, partial completion of Dragon Slayer I
Kalphite	120-185	15
Kurask	120-185	70 , 65
Lizardmen	90-120	Unlocked the Reptile's got ripped ability via spending 75 Slayer reward points
Minions of Scabaras	30-60	85, partial completion of Contact!
Mithril dragons	4-8	Unlocked the I hope you mith me ability via spending 80 Slayer reward points, partial completion of the Barbarian Training   miniquest
Mutated Zygomites	10-25	57, 60, completion of Lost City
Nechryael	110-170	80 , 85
Red dragons	30-80	68, partial completion of Dragon Slayer I, unlocked the Seeing Red ability via spending 50 Slayer reward points
Rune dragons	3-6	Completion of Dragon Slayer II
Skeletal Wyverns	5-15	72   70, completion of Elemental Workshop I
Smoke devils	120-185	93 ,  85
Spiritual creatures	120-185	63, 60, completion of Death Plateau
Steel dragons	30-60	85, partial completion of Dragon Slayer I
Suqah	120-185	85, partial completion of Lunar Diplomacy
Trolls	120-185	60
Turoth	120-185	55 ,  60
TzHaar	110-180	Unlocked the Hot stuff ability via spending 100 Slayer reward points
Vampyres	110-170	Unlocked the Actual Vampyre Slayer ability via spending 80 Slayer reward points
Warped creatures	120-185	Unlocked the Warped Reality ability via spending 60 Slayer reward points
Wyrms	80-145	62

Your ideal block list may vary depending on whether you're focused on XP, bossing drops, or profit.

Best Tasks to Do

Here are the recommended tasks from Nieve/Steve for optimal XP and profit:

Abyssal demons (85 Slayer) - abyssal whip drops, strong XP
  Dust devils (65 Slayer) - massive XP/hr in the Smoke Dungeon or the Catacombs
  Nechryael (80 Slayer) - profitable with superior spawns
  Greater demons - fast kills in Chasm of Fire or Wilderness
  Smoke devils (93 Slayer) - decent XP, chance at Occult necklace
  Bloodveld (50 Slayer) - high XP/hr, cannonable
  Hellhounds - fast task, clue scroll hunting
  Black demons - excellent XP with cannon, or AFK in Catacombs

Tasks to Block or Skip

To maximize efficiency, block or skip these tasks:

  Cave kraken - time-consuming, only worth it if hunting Kraken drops
  Steel dragons - slow kills, low GP/hr
  Spiritual creatures - poor XP, unless hunting specific drops
  Gargoyles - decent profit but lower XP/hr compared to alternatives
  Skeletal wyverns - profitable but long task time
  Fire giants - better assigned by lower-level masters
  Trolls - mediocre XP, travel time loss

Why Use Nieve/Steve?

Fastest Slayer XP in the game for mid-to-high levels
Excellent GP/hr from Nechryael, Abyssal demons, and Dust devils
Close to a bank for resupplying
Tasks complement high-level PvM training (e.g., preparing for Hydra, Cerberus, or Slayer bosses)

Tips for Efficiency

  Unlock superior creatures ASAP for massive XP boosts
  Bring a cannon for tasks like Bloodveld, Dust devils, and Suqahs
  Use the Slayer helmet imbued for max damage and accuracy
  Skip time-consuming tasks unless hunting specific boss drops

Conclusion

Nieve and Steve remain the most efficient Slayer masters for players pushing towards 99 Slayer or profit-based Slayer training. By focusing on their best XP tasks and blocking their worst assignments, you will optimize your time, earnings, and Slayer points en route to becoming a maxed PvM main or high-level Ironman.