OSRS Abyssal Sire Guide: Strategy & Gear Setup

The Abyssal Sire is a level 350 Abyssal demon slayer boss that requires 85 slayer to kill and players must have visited the Abyss at least once to access its lair. The Sire can only be fought solo, and when assigned an abyssal demon or itself as a slayer task, like other Slayer bosses. 

Players can expect valuable items like the Abyssal whip, dagger, Abyssal head, jar of Miasma, or rarely the Abyssal orphan when killing the Abyssal Sire. Players also have a chance to receive the Unsired which can be put at the Font of Consumption for a reward like Bludgeon claw, Bludgeon spine, or the Bludgeon axon which can be combined for the Abyssal bludgeon.

Location of the Abyssal Sire

The Sire is located in the Abyssal Nexus, south of the Abyss for Runecraft. There are four chambers in the Nexus where Sire is, allowing multiple people to fight it per world.

Here are the fastest ways to get here:

• Fairy ring DIP 

• Mage of Zamorak: Players without access to the Fairy ring, players have to enter the Abyss through the Mage of Zamorak and go south. This method will drain all your prayer points, so it is not recommended.

Recommended Stats for the Abyssal Sire

• 85 slayer
• 85 attack
• 85 strength
• 85 defence
• 92 magic
• 70+ prayer
• 90+ construction for fairy ring and Ornate rejuvenation pool

Gear and Inventory Setups for Abyssal Sire

Best ranged gear setup

Head slot: Slayer helm (i)

Neck slot: Necklace of anguish

Cape slot: Dizana’s quiver

Body slot: Masori body (f)

Leg slot: Masori chaps (f)

Weapon slot: Scorching bow

Ammo slot: Dragon arrows

Glove slot: Zaryte vambraces

Boot slot: Pegasian boots

Ring slot: Venator ring

Cheaper ranged gear setup

Head slot: Slayer helm (i)

Neck slot: Amulet of Fury

Cape slot: Ava’s assembler

Body slot: Crystal Body

Leg slot: Crystal legs

Weapon slot: Toxic blowpipe

Glove slot: Barrows gloves

Boot slot: ranger boots

Ring slot: Archers ring(i)

Best Melee Setup

Head slot: Slayer helm (i)

Neck slot: Amulet of rancour

Cape slot: Infernal cape

Body slot: Torva platebody

Leg slot: Torva platelegs

Weapon slot: Scythe of Vitur

Ammo slot: Rada’s blessing 4

Glove slot: Ferocious gloves

Boot slot: Primordial boots

Ring slot: Ultor ring

Cheaper Melee Setup

Head slot: Slayer helm (i)

Neck slot: Amulet of torture

Cape slot: Fire cape

Body slot: Bandos chestplate

Leg slot: Bandos tassets

Weapon slot: Osmuten’s fang

Shield slot: Dragon defender

Ammo slot: Rada’s blessing 4

Glove slot: Barrows gloves

Boot slot: Dragon boots

Ring slot: Lightbearer

Inventory setup for Abyssal Sire

• 1 stamina potions
• Ranged switch for phase 1
• Lunar/dramen staff
• Special attack weapon: Dragon claws
• 4 prayer potions
• 1 Antidote++
• 1 divide super combat potion
• 1 divine ranging potion
• Runes and rune pouch for shadow spells
• Good food like Manta ray
• Emergency teleport

Abyssal Sire Attacks

Standard attacks

In phase 2, Sire uses three types of melee attacks. Use protect from melee to reduce their max hit to 6, 6, and 26 respectively.

Miasma Pools

This pool causes damage to a 3x3 area, dealing 10-30 poison damage per tick. This damage can be prevented by using poison protection, and there is enough time to avoid all damage by running 2 tiles away. In phases 1 and 2, Sire will clench its claws to its stomach before performing this attack. However, there is no animation for the attack in Phase 3.

Abyssal Sire’s Minions

In all phases of the fight, Sire can create spawns that attack randomly with ranged for 9 damage and melee for 4 damage. They have 15 hitpoints and low accuracy. After 12 seconds, a spawn will mature into a scion which has higher health and accuracy that hits up to 16 with ranged and up to 10 with melee.

Forced Teleport and Explosion

Abyssal Sire can use this attack twice during the fight.

• In phase 2, If the player tries to safespot the Sire, it will teleport them next to it and discharge a blast of energy from the portal in its stomach for up to 60 damage if the player does not move. 
• In phase 3, when the Sire is under 140 health, it will teleport the player next to it again and trigger an explosion. Move away immediately to avoid damage.

Overview of the Fight

In phase 1, the player must kill all four respiratory systems, which are protected by six immobile tentacles. When the tentacles are active, they prevent all damage to the respiratory system and attack nearby players for up to 30 damage. These tentacles are inactive in phase 2 and become active again in phase 3. Players can stun the Sire and its Tentacles for 30 seconds by one of the following methods:

• Cast a shadow spell on the Sire
• Deal 75 damage to the Sire with ranged/magic

Strategy for the Abyssal Sire and its Phases

Phase 1

The Sire awakens when attacked. If not stunned, it will summon miasma pools under the player and create spawns. The tentacles will attack and prevent damage to the respiratory systems. Players must kill all 4 respiratory systems to advance, requiring the Sire to be stunned to damage them.

Phase strategy: Use a Shadow spell on the Sire to stun it for 26 seconds. While stunned, use ranged to attack the respiratory systems. You can kill 2 to 3 respiratory systems before you have to stun the Sire again to kill the rest of the respiratory systems. When all respiratory systems are killed, switch to melee gear and protect from melee. Start with special attacks on the boss, then continue to attack it 

Phase 2

Players must stay on row 1 during this phase as attacking it from outside melee distance will cause the Sire to teleport you to itself and use a damaging blast of energy. Sire will also use melee attacks, miasma pools, and create spawns. Once Sire is damaged to below 200 health, it will start walking south.

Phase strategy: continue attacking with melee while protect from melee is turned on till it gets below 200 health and ensure you stand on row 1.

Phase 3

This phase has 2 different stages

Stage I

At the start of phase 3, Sire will not use its melee attacks. It will summon miasma pools at a faster rate and create spawns, making it harder to see the pools. Once it is damaged to below 140 health, it will teleport the player close to it, indicating the start of the second stage.

Stage I strategy: When Sire gets below 200 health, move to any of the tiles in row 2 shown in the image and turn on protect from ranged. Continue to attack with melee while moving between the 2 tiles to avoid damage when it throws the miasma pools.

Stage II

The Sire will teleport the player to the western tile on row 2 and after two ticks, it will explode, dealing high damage if the player does not move. After the explosion, Sire will create numerous spawns and use its miasma pool attack at least 3 more times, then stop as long as 15 minions are left alive.

Stage II strategy: when you get teleported close to Sire, run south, then return to the tiles after the explosion attack. Continue attacking the Sire with melee while praying ranged. Ignore the spawns and switch tiles when it throws the miasma pools.

GP per hour from the Abyssal Sire

Players can kill Abyssal Sire 25 times per hour with the recommended stats and gear above.  This results in a profit of 2.3M per hour after the cost of supplies has been deducted. Profits will be higher with an Osmumten’s fang and Blood barrage for healing, leading up to 30 kills per hour. 

Drops from the Abyssal Sire

100% drops

Abyssal ashes

Weapons and Armour
Battlestaff 10 (1/23.17), Rune full helm 3 (1/34.75), Mystic lava staff 2 (1/34.75), Rune sword 3 (1/34.75), Rune platebody 2 (1/46.33), Rune kiteshield 2 (1/46.33), Mystic air staff 2 (1/69.5), Air battlestaff 6 (1/69.5).

Runes and Ammunition
Blood rune 190–210 (1/27.8), Death rune 330–370 (1/27.8), Law rune 250 (1/27.8), Soul rune 225–275 (1/27.8), Cosmic rune 350 (1/34.75), Cannonball 300 (1/34.75).

Herbs
Grimy kwuarm 25 (1/97.3), Grimy dwarf weed 25 (1/108.1), Grimy cadantine 25 (1/108.1), Grimy lantadyme 25 (1/139).

Seeds
Ranarr seed 2 (1/231.7), Snapdragon seed 2 (1/245.2), Torstol seed 2 (1/139.5), Watermelon seed 30 (1/139.5), Willow seed 2 (1/371), Mahogany seed 2 (1/371), Maple seed 2 (1/698), Yew seed 2 (1/698), Papaya tree seed 2 (1/698), Magic seed 2 (1/698), Palm tree seed 2 (1/698), Spirit seed 1 (1/1,158), Dragonfruit tree seed 1 (1/1,158), Celastrus seed 1 (1/1,738), Redwood tree seed 1 (1/1,738).

Materials
Coal 380–420 (noted) (1/23.17), Earth orb 47–63 (noted) (1/27.8), Pure essence 600 (noted) (1/27.8), Magic logs 50–70 (noted) (1/27.8), Uncut diamond 15 (noted) (1/27.8), Runite ore 1 (1/34.75), Onyx bolt tips 10 (1/46.33), Runite bar 5 (noted) (1/69.5).

Talismans
Air talisman 1 (1/324.3), Body talisman 1 (1/324.3), Earth talisman 1 (1/324.3), Fire talisman 1 (1/324.3), Mind talisman 1 (1/324.3), Water talisman 1 (1/324.3), Cosmic talisman 1 (1/324.3), Chaos talisman 1 (1/1,081), Nature talisman 1 (1/1,081).

Other
Coins 48,000–52,000 (1/126.4), Chili potato 1 (1/126.4), Super restore(4) 1 (1/278), Binding necklace 1 (1/278), Saradomin brew(4) 1 (1/278), Jug of water 250–350 (noted) (1/69.5), Unsired 1 (1/100).

Rare Drops
Nothing (1/255.4; Never), Coins 6,000 (1/282.4), Loop half of key 2 (1/294.2; 1/292), Tooth half of key 2 (1/294.2; 1/292), Uncut sapphire 2 (1/186; 1/602), Runite bar 2 (1/186), Nature rune 134 (1/372), Rune 2h sword 1 (1/977), Rune battleaxe 1 (1/977), Uncut emerald 2 (1/2,372; 1/1,205), Law rune 90 (1/2,965), Death rune 50 (1/2,965), Steel arrow 300 (1/2,965), Rune arrow 84 (1/2,965), Adamant javelin 40 (1/2,965), Rune sq shield 2 (1/2,965), Dragonstone 2 (1/2,965), Silver ore 200 (noted) (1/2,965), Uncut ruby 2 (1/4,745; 1/2,409), Rune kiteshield 1 (1/593), Dragon med helm 1 (1/593), Rune spear 1 (1/6,261; 1/726), Shield left half 1 (1/122,652; 1/1,453), Nature talisman 1 (1/122,652; 1/1,453), Dragon spear 1 (1/122,652; 1/937), Uncut diamond 2 (1/8,978; 1/9,637), Rune javelin 10 (1/937; 1/9,275).

Tertiary Drops
Brimstone key 1 (1/40), Clue scroll (elite) 1 (1/480).