Zalcano OSRS Guide: Mining Boss Strategy, Gear & Drops

Overview: Zalcano at a Glance

Zalcano is the OSRS mining boss, fought in a prison under Prifddinas with Mining, Smithing and Runecraft instead of combat. The strategy is a loop: mine tephra from the glowing rock, refine it at the furnace on the east side, imbue it at the altar on the west side, and throw it to break her 300-point stone armour. When the armour breaks she falls, everyone mines her with a pickaxe, and the loop repeats until her 1,000 hitpoints are gone.

Zalcano has no level requirement of her own. Prifddinas needs Song of the Elves, so in practice you need 70 Mining and 70 Smithing (plus 70 in six other skills) before you can get in.

All of her attacks are typeless, so protection prayers do nothing. You survive by watching the floor: falling rocks hit for 40 or more, and orange symbols hit harder the longer they stay up, to 26.

Teams of 3 to 5 work best. Five is the best size for loot while still killing her in two phases, and a good trio usually takes three. The official worlds are 375 (Germany) and 378 (US west).

Access Requirements

The gate is Song of the Elves, which needs 70 Agility, Construction, Farming, Herblore, Hunter, Mining, Smithing and Woodcutting to start. Once Prifddinas is open you can walk straight in.

Higher Smithing and Runecraft raise your tephra damage, and higher Mining raises the damage you deal when mining her. The 70s get you in; higher levels make each kill faster. The boss requirements checklist lists the other skilling boss gates.

Location and How to Get There

Zalcano's prison is under the Trahaearn district of Prifddinas. Use the teleport platform just west of the south-eastern bank.

A teleport crystal or eternal teleport crystal is the fastest way there. A spirit tree to Prifddinas or a house in Prifddinas also works. Talk to Crefydd in the middle of the city to set your respawn point to Prifddinas for free, so a death puts you back near the platform.

Recommended Skills and Gear

Combat stats do not matter. Your damage comes from two formulas, one for tephra and one for your pickaxe.

• The best pickaxe you can wield. It mines tephra faster and adds damage when you mine her.
• Varrock armour, which can give extra tephra per swing. Without it, wear full graceful.
• A charged celestial ring or signet for the same extra-tephra chance.
• Prayer-bonus items in spare slots if you use the dragon or crystal pickaxe special, so Preserve keeps the +3 Mining boost going.
• A regen bracelet or Hitpoints cape to recover between hits.

Inventory and Supplies

• 1 to 3 stamina potions, depending on your Agility and team size.
• A teleport crystal to get back if you die.
• Saradomin brews or summer pies in a few slots. If you watch the floor you will barely eat.
• Empty slots for tephra.
• A rune pouch, if you want to keep the rune drops without losing tephra space.

Mechanics: Attack Styles, Max Hits and Immunities

• Falling rocks: debris and a shadow mark the tile. Step one tile away or take 40+.
• Demonic symbols: blue ones add 50% to your tephra damage while you stand on them. Orange ones drain run energy and hit harder the longer they are up, to 26.
• Glowing rock blast: she fires at the glowing rock to move it, and anyone next to it takes over 20.
• Golem: spawns at the edge and restores up to 50 armour if it reaches her. It has 14 hitpoints and drops 16 to 24 imbued tephra when killed.
• Rising shock wave: when she gets up she knocks back anyone next to her for about 10 damage and destroys every tephra in the room.
• Pebble barrage: hits everyone for about 5 and cannot be avoided.
• Standing under her while she is down costs 3 to 10 damage a tick.

Where Zalcano Sits in Progression

Zalcano and Hespori both sit at 2 of 5 in our skilling boss group, above Wintertodt and Tempoross. Zalcano is the only one gated by a quest: Song of the Elves, with 70 in eight skills.

Zalcano Strategy, Step by Step

1. 1

   Mine the glowing rock formation in one of the four corners.

   At the start of a fight the north-east one glows most often. Rocks that are not glowing give tephra far more slowly.

2. 2

   Refine the tephra at the furnace on the east side.

3. 3

   Imbue it at the altar on the west side.

4. 4

   Throw it at Zalcano.

   Save it for blue symbols when they appear, since each throw does 50% more there.

5. 5

   When her armour hits zero she falls.

   Stand close as it gets low so you start mining at once, but never stand under her.

6. 6

   Mine her for the 12 to 16 seconds she is down, then step away before she rises.

   The shock wave destroys all tephra, so do not mine new tephra until it has gone off.

To split the work, divide 30 by the number of players and round up: that is the minimum tephra each player should mine. In a team of 3 that is 10 each.

In teams under 8, kill the golem with tephra. It only has 14 hitpoints, it stops up to 50 armour of healing, and it drops 16 to 24 imbued tephra to one of the players who hit it. Getting those tephra also ticks off the Team Player Combat Achievement.

Drops and What Zalcano Is Worth

Every eligible player gets crystal shards (1 for drop eligibility, 2 for unique eligibility, 3 for the MVP) and a roll on the main table of noted ores, runes, onyx bolt tips and more. Loot scales with points: your damage to her hitpoints plus double your damage to her armour. You need 5 armour damage for any drop and 31 combined damage for uniques. The MVP also gets 10% more non-unique loot and the infernal ashes.

Talk to Rhiannon to swap the resource drops for extra Mining XP. Uniques and the pet still roll either way.

Combat Achievements

Zalcano has four Elite Combat Achievement tasks: Perfect Zalcano (5 kills in a row without leaving or being hit by falling rocks, rock explosions, her rising or a red symbol), Team Player (get imbued tephra from a golem), The Spurned Hero (finish as MVP) and Zalcano Veteran (25 kills). Perfect Zalcano is the one that takes practice. The Combat Achievements guide covers the rest of the Elite tier.

Ironman Notes

Ironmen get full drops when killing Zalcano with other players. She is the only source of the crystal tool seed, so an iron who wants a crystal pickaxe, axe or harpoon has to kill her, and the noted ores feed Smithing along the way.

Common Mistakes and Death Causes

• Turning on protection prayers. Her damage is typeless, so they do nothing.
• Standing still at the glowing rock and eating a falling boulder for 40+.
• Running through orange symbols on the way to the furnace or altar.
• Mining fresh tephra before she rises, so the shock wave deletes it.
• Throwing tephra off a blue symbol when one is up nearby.
• Ignoring the golem in a small team and letting it heal 50 armour.

FAQ

Still stuck on a mechanic? Ask the team on our Discord, it is free.