Abyssal Sire

Should you fight this?

What you get out of Abyssal Sire, so you can decide if it fits your goals right now.

• Abyssal bludgeon is a premier special-attack crush weapon.
• Abyssal dagger is a strong, affordable stab weapon.
• Unsired trade-ins can return the abyssal whip and orphan pet.
• Reliable gp on abyssal demon Slayer tasks.

Gear setups

Pick the setup that matches your bank. Every upgrade here links back to the Gear hub.

Strategy

1. 1

   Stun, then damage

   Open each kill by disabling the four respiratory systems and stunning the Sire's head so it can't attack while you build damage. A demonbane weapon speeds it up (it's a demon).

2. 2

   Keep anti-venom up

   Its miasma poisons — bring anti-venom and expect to reposition constantly rather than stand still.

Key mechanics

What can kill you at Abyssal Sire, and what to do about it. For the full breakdown, see the OSRS Wiki link below.

• Miasma pools

  It spawns poisonous fumes under you (a 3x3 AoE that poisons from ~8) — keep moving off them and stay anti-venomed.

• Final explosion

  Below ~210 HP it detonates for heavy damage (up to ~96) — DPS it down and step well away before the blast lands.

• Melee proximity

  Its melee hits hard (up to ~66) if you stand adjacent while it's active — attack from range/keep it stunned rather than trading melee.

Notable drops

Item	Rarity	Value
Bludgeon spine Unique	1/258	—
Bludgeon claw Unique	1/258	—
Bludgeon axon Unique	1/258	—
Abyssal dagger Unique	1/258	1.1m
Jar of miasma	1/2000	42.9k
Abyssal orphan pet	1/2560	—

Drop probability by KC

For every Abyssal Siredrop with a fixed rate, see the chance you’ve received at least one copy by your kill count. Sign in with a linked account to use your live KC.

Your Abyssal Sire kill count

Enter your KC to see the chance you’ve seen each drop at least once.

Drop	Rate	Chance by KC
Bludgeon spine Unique	1/258	—
Bludgeon claw Unique	1/258	—
Bludgeon axon Unique	1/258	—
Abyssal dagger Unique	1/258	—
Jar of miasma	1/2000	—
Abyssal orphan pet	1/2560	—

These figures are an independent-roll estimate: they treat every kill as a separate roll at the listed rate ( 1 − (1 − p)^KC). Real drops can involve guaranteed rolls, point/invocation scaling or completion rewards, so the true odds may differ. A probability is never a guarantee — even far above 90%, the drop is never owed to you. Drops without a fixed 1/Nrate show “—”.

Progression after this boss

Once Abyssal Sire feels comfortable, these are the natural next steps up in difficulty and payout.

Frequently asked questions