OSRS Boss Gear & Inventories

Basilisk Knights

Combat level 204 · 300 hitpoints

Jormungand's Prison beneath the Island of Stone. The source of the Basilisk jaw (1/1,000 on task) which makes the Neitiznot faceguard, one of the better mid-game melee helms.

Requirements

• 60 Slayer
• The Fremennik Exiles
• HP 80+
• Prayer 37 for Protect from Magic
• MIRROR SHIELD OR V'S SHIELD MANDATORY

Pointers

• A MIRROR SHIELD OR V'S SHIELD IS MANDATORY. Without one you take heavy damage AND get your stats drained hard.
• They are weak to CRUSH (-15 defence) and resist stab and slash (+30 each). Bring a bludgeon or mace, not a whip.
• They also have a 40% elemental weakness to EARTH spells, which makes magic a genuine competitor to melee here.
• They attack with slash and magic, and their attack speed adapts to your weapon speed.
• Protect from Magic is the recommended overhead.
• On task the average kill is ~20.5k versus ~7.3k off task. This is very much a task-only method.

What the sim brings here

Every worn slot and every inventory row below is the combat simulation's own output, at the style it ranks fastest for each account tier. Each line carries the channel that chose it: sim means the model solved it, and inherited means the value came through from the hand-authored loadout the solver starts from. Riding through a generator does not make a value derived, so those are marked rather than presented as the model's answer. A line marked unattributed carries a channel the model's own vocabulary no longer declares, so no word is put on it at all rather than one being read off the channel's spelling. Where the model has not answered a row, its own refusal is printed instead; where it has answered a row it doubts, the answer is printed with the doubt attached rather than withheld.

What each of those badges means

• derived:ascent (sim): an accepted coordinate-ascent move: betterThan() preferred this candidate over the incumbent under the row objective and band. The weapon+ammo+shield pairing and the crystal set arrive here too, because both are offered to the same acceptance test.
• derived:composed (sim): balanceInventory() sized this row from the derived supply menu. The menu enumerates CONSUMABLES and narrows by style, tier and price; it is not the authored bag.
• derived:empty (sim): the finished loadout leaves this slot EMPTY, and that is an ANSWER rather than a gap: a two-handed weapon forfeits the shield and a weapon that stores its own ammunition frees the ammo slot. Recorded so a null slot is never read as unprovenanced.
• derived:pouch (sim): derivePouchInto(): the rune pouch and its loose overflow, from the spell the build actually casts and the pouch slot criterion. Not from a pouch a human typed.
• derived:spec (sim): a carried special-attack weapon PROPOSED by `specPlan` (specchoice.js), which prices every SPEC_ATTACKS weapon that deals damage or drains defence on top of the bag solved without one, and KEPT by `judgeSpecArms` only where the composed bag with it beats the bag without it under `compareScores`. The row's `kpt.specWeapon` carries both arms.
• derived:travel (sim): travelPlan(): the way IN, ranked out of the derived transport graph against this account's own unlocks, rather than copied from whatever a human typed. The way OUT is a separate channel (`ruled:escape`) because it is a typed choice, not a ranking.
• ruled:escape (ruled): escapeLeg(): the way OUT, taken from the typed per-tier table ESCAPE_PLAN and judged against the account, with nothing substituted and no fallback ladder. The ACCOUNT CHECK is a derivation; the CHOICE of item is not, so this is not a `derived:` channel. ESCAPE_PLAN carries no attributedTo field (PROVENANCE_BACKLOG: silent-and-unattributed), so this channel does not claim one either.

Basilisk Knights strategies on the OSRS Wiki