Skip to main content

Abyssal Sire

The Abyssal Sire is a multi-phase slayer boss with vent mechanics and minion spawns. Requires 85 Slayer.

Stats​

StatValue
Combat Level350
Hitpoints500
Defence250
WeaknessMagic & Crush attacks
PoisonableYes
Slayer TaskYes
Requirement85 Slayer

Mechanics Overview​

The Sire doesn't directly attack but creates environmental hazards:

  • Poison pools spawn under players (move to avoid damage)
  • Vents must be destroyed to progress
  • Scions & Spawns must be dealt with

Phase Breakdown​

Phase 1: Dormant (500-425 HP)​

  • Sire sits dormant at the end of the room
  • Attack until it reaches 425 HP

Phase 2: Vents (425 HP)​

  • Sire falls asleep and tentacles activate
  • Destroy all 4 vents using long-range attacks
  • Tentacles will melee you if you get too close
  • If vents aren't killed in time, Sire wakes up at 500 HP (vents stay damaged)

Phase 3: Active (425-250 HP)​

  • Sire stands up and walks toward you
  • Gains a melee attack
  • Spawns Scions (15 HP) and Spawns (50 HP)
  • Use Ice Barrage to stack and kill minions efficiently

Phase 4: Final Stand (250-0 HP)​

  • Sire moves to the middle of the room
  • Poison pools spawn much more frequently
  • Loses melee attack, focuses on spawning minions
  • Tentacles reactivate - stay in the middle to avoid melee damage

Strategy​

  1. Attack Sire until 425 HP
  2. Kill all 4 vents with ranged/magic (avoid tentacles)
  3. Deal with Scions/Spawns while damaging Sire
  4. Keep moving to avoid poison pools
  5. Use Protect from Melee (reduces but doesn't prevent all damage)

Location​

Teleport: Boss Teleports > Abyssal Sire

Abyssal Darksire (Superior)​

The superior version that spawns randomly with the Superior Slayer perk.

StatValue
Combat Level750
Hitpoints1,000
Defence325
Spawn Rate1/80 (Superior 1) or 1/40 (Superior 2)

Simplified Mechanics​

  • Only spawns poison pools under the player
  • No vents or minions
  • Keep moving to avoid pool damage