An abyssal demon task boss in the Abyssal Nexus. Disorient it, kill its four respiratory systems, survive its melee and explosion, and trade Unsireds at the Font.
A Slayer boss: combat 350 with 425 hitpoints, sleeping in one of the four chambers of the Abyssal Nexus. A kill pays 478 Slayer XP, plus 50 for each of its four respiratory systems, and counts as an abyssal demon.
| Detail | Value |
|---|---|
| Requirements | 85 Slayer and an abyssal demon task (or an Abyssal Sire boss task from Duradel) |
| Teleport | Teleport menu > Bosses > Abyssal Sire (35,000 coins). You land beside the Font of Consumption |
| Leaving | The Appendage north of the Font goes to Lumbridge |
| Chambers | Four, each with its own Sire and one fighter at a time. If they stop attacking for about 20 seconds, someone else can take over |
Phase 1 (the throne). Attack the Sire to wake it. Its six tentacles guard the four respiratory systems in the corners, which take only 0 to 3 damage while the tentacles are awake. Disorient the Sire to put them to sleep: deal it 75 damage with ranged or magic, or cast a Shadow spell (Rush 25%, Burst 50%, Blitz 75%, Barrage always). The stun lasts 30 seconds; the tentacles wake after 27. Kill the systems with ranged, magic or a halberd.
Phase 2 (melee). It hits up to 66. Protect from Melee cuts its swipe and tendril flick to 6 and its double flick to 26. Stay next to it: from more than 2 tiles away it drags you in and blasts the spot (up to 60). Step off the purple miasma pools.
Phase 3 (the centre). Below 50% it walks to the middle, summons spawns, wakes its tentacles again and uses only miasma pools. Below 35% it pulls you next to it and explodes two ticks later for up to 96: run at least two tiles away. Spawns that live 12 seconds become scions (up to 16 ranged, 10 melee). All minions die with it.
| While it is | It takes |
|---|---|
| Walking off its throne | Half damage, cannot drop below 40% |
| Walking to the centre | Half damage, cannot drop below 20% |
| Latched in the centre | Full damage, but cannot die before it explodes |
Every kill drops Abyssal ashes (85 Prayer XP) and one table roll. Before that there is a 1/100 chance of an Unsired. Use it on the Font of Consumption:
| Font of Consumption | Chance |
|---|---|
| Bludgeon spine, claw or axon (no duplicates until you have all three) | 62/128 |
| Abyssal dagger | 26/128 |
| Jar of miasma | 13/128 |
| Abyssal whip | 12/128 |
| Abyssal head | 10/128 |
| Abyssal orphan (pet; once owned, the Font rolls out of 123) | 5/128 |
| Weapon | Stats | Special |
|---|---|---|
| Abyssal bludgeon (spine + claw + axon on the Font or the Overseer; 70 Attack, 70 Strength, two-handed) | Crush +102, Strength +85 | Penance (50%): +0.5% damage per missing Prayer point |
| Abyssal dagger (70 Attack; poisonable) | Stab +75, Slash +40, Strength +75 | Abyssal Puncture (25%): two quick hits at +25% accuracy and -15% damage |