OSRS Boss Gear & Inventories

Artio

Combat level 320 · 450 hitpoints

The singles-plus variant of Callisto, fought in Hunter's End at level 21 Wilderness. The wiki puts the trade plainly: compared to Callisto "the fight is safer and easier in return for lower drop quantities and rates". Same unique table: Voidwaker hilt, claws of Callisto, tyrannical ring, dragon 2h sword and dragon pickaxe.

Requirements

• Hunter's End, a singles-plus area in level 21 Wilderness
• Hard Wilderness diary, OR a Callisto boss Slayer task (a bear task does not bypass the diary)
• Suggested by the strategy page: 90 Combat, 60 Hitpoints, 70 Defence, 44 Prayer, 75 Ranged, 92 Magic

Pointers

• MELEE IS ARGUED AGAINST ON THE PAGE, not merely rated lower: she "can deal incredibly high melee damage through prayer, so melee combat is not advised".
• Her melee has a MINIMUM hit of 15 and a maximum of 35, and Protect from Melee only halves it. There is no prayer that takes her melee to zero.
• The white orb is a KNOCKBACK answered by Protect from Magic, and it is the single biggest hit in the fight: up to 50 damage if it lands off prayer, scaled by how little room you have behind you.
• Bear traps at 66% and again at ~33%: up to 15 damage and a brief bind. After the second set they are redeployed with every attack she makes.
• A freeze is GUARANTEED to land while she is unfrozen, provided your total magic accuracy is above 0. That is why range setups here keep a positive magic bonus instead of dumping it.
• Someone entering the den teleblocks everyone inside for 3 ticks. With the hard diary done, which you need to be here at all, that delay no longer occurs.

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:cheapestEqual (sim): cheapestOfEquals(): at budget, an exactly-tied cheaper item replaced the one in this slot. It changes the price and, by construction, not the score.
• 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:seedWeapon (sim): the weapon the ascent BEGAN from, taken off the dps-ranked weapon shortlist, or the forced weapon of a multi-start seed. Never off a start loadout.
• 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.
• derived:voidSeed (sim): the Void set offered assembled, because an all-or-nothing set effect pays nothing until four slots are right and every single step toward it is a strict loss. The pieces come from VOID_SET in combat.js, the same names its own predicate tests.
• 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.

Artio strategies on the OSRS Wiki