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Bio Lab 5 Old headgears and class hats

Level 170 and up (monsters 176-179)
Where Tomb of the Fallen (lhz_dun_n, Bio Lab 5): Sorrowful Soul's Mind makes the hat, Wandering Mind enchants it; the Class Hat Exchange in the hub row Bio Lab
Cost of a full set One hat: the costume hat of your class (5 % a kill) + 5 Souls + 100 Energy Fragments for 100 % (or 1 Soul + 20 at 20 %); about 1,500 kills. Class hat: the Old headgear + 50 Instance Coins.
Enchant route Wandering Mind: Cursed Fragments (dropped there), 10 a slot; the special enchant goes to level 10 (20 to 1,000 a level, a failure drops a level); reset 10 Sentimental Fragments.
Related lines Temporal circlets; Ancient Hero (EDDA Bio Laboratory)

What it is

The Old headgears are level 170 upper headgears for the 3rd-job lines, made in the Tomb of the Fallen (lhz_dun_n, Bio Lab 5) from the costume hats its monsters drop. Each one can be traded at the hub for the matching class hat (the iRO versions, also level 170).

Old headgear Class Costume hat drops from Soul it needs
Old Rune Circlet Rune Knight Seyren Windsor Swordman Soul
Old Casket of Protection Royal Guard Randel Lawrence Swordman Soul
Old Mitra Arch Bishop Margaretha Sorin Acolyte Soul
Old Blazing Soul Sura Chen Liu Acolyte Soul
Old Driver Band, Old Driver Band (Yellow) Mechanic Harword Alt-Eisen Merchant Soul
Old Midas Whisper Geneticist Flamel Emule Merchant Soul
Old Shadow Handicraft Shadow Chaser Gertie Wie Thief Soul
Old Circlet Of Bones Guillotine Cross Eremes Guille Thief Soul
Old Magic Stone Hat Warlock Kathryne Cheiron Mage Soul
Old Wind Whisper Sorcerer Celia Alde Mage Soul
Old Camouflage Rabbit Hood Ranger Shecil Damon Archer Soul
Old Minstrel Song's Hat Minstrel Alphoccio Basil Archer Soul
Old Dying Swan Wanderer Trentini Archer Soul

The 4th jobs wear the hat of their line (a Dragon Knight the Old Rune Circlet, and so on).

Getting there

The warper, Bio Lab, "Tomb of the Fallen" (or @warp lhz_dun_n). You arrive in the northern room beside the Mind NPCs. The monsters there are level 176-179 and hit hard: come at 170+ with a party or good gear. A Dungeon gateway in the same room takes you back to Lighthalzen.

What the monsters drop

Every one of the 13 regular monsters (the table above) drops:

Item Chance per kill Used for
Its own costume hat (Costume Circlet of Bones, ...) 5 % the base of the Old headgear
Its class Soul (Swordman, Acolyte, Merchant, Thief, Mage or Archer) 5 % making the hat
Fallen Energy Particle nearly every kill 50 make 1 Energy Fragment at the Bully
Energy Fragment 5 % (Sol) making the hat
Cursed Fragment about 1 per kill (two drop rows) enchanting the hat
Sentimental Fragment nearly every kill resetting the enchants
Class Enchant Stone Box 2 % a random class costume stone (Costumes)

Costume Caches also give the costume hats; the MVP Costume Cache holds all of them (Costumes).

Energy Fragments, all sources: the 5 % drop above (Sol's addition; officially there was none), the Bully in Lighthalzen (312,296: 50 Fallen Energy Particles for 1), and Victimized Soul's Mind (lhz_dun_n 143,269), who turns a Bio Lab 3 or 4 weapon (Krieg, Cannon Spear, Sura Rampage, ...) into 1 to 3 fragments. Together that is about 1 Energy Fragment per 15 kills.

The costume hats and Souls are set lower than the 20x server rate would make them (Sol, 2026-10-15): a costume hat takes about 20 kills and five Souls about 100, so the Energy Fragments still set the pace.

Making the hat

At Sorrowful Soul's Mind (lhz_dun_n 136,269, or the copy in the safe room). Pick your hat, then one of:

Way Costs Success
Normal the costume hat + 1 Soul + 20 Energy Fragments 20 % (everything is used up either way)
Safe the costume hat + 5 Souls + 100 Energy Fragments 100 %

Both ways cost about 100 Energy Fragments per hat on average; the safe way needs only one costume hat. Expect roughly 1,500 kills for one hat: the Energy Fragments set the pace, the costume hat and Souls come along on the way.

Enchanting

At the Wandering Mind (lhz_dun_n 134,265). Wear the Old headgear. Every step costs Cursed Fragments, which the same monsters drop (the Bully's trade of 666 Energy Fragments for one is never worth it).

Step Cost Result
4th slot, then 3rd slot 10 Cursed Fragments each a random stat +1 to +5 (STR, INT, DEX, AGI, VIT or LUK)
2nd slot 10 Cursed Fragments a stat +4/+5, or a special enchant level 1: Mettle, Magic Essence, Acute, Master Archer, Adamantine, Affection or Tenacity
Special enchant up a level (2 to 10) 20, 40, 50, 70, 100, 150, 250, 500, 1,000 Cursed Fragments 70, 50, 35, 25, 18, 13, 9, 6, 4 %; a failure drops it one level (the hat is never lost)
Reset 10 Sentimental Fragments empties slots 2-4 (refine and the card stay)

The class hat (hub)

The Class Hat Exchange in the hub (@hub, row Bio Lab) takes your class's Old headgear and 50 Instance Coins and gives the class hat (iRO's version, level 170, tradeable). The Old headgear's refine and enchants are lost (the class hat comes +0), and an equipped Old headgear is not offered (take it off first).

Class hat Old headgear it takes
Black Ribbon (Rune Knight) Old Rune Circlet
Divine Guard Hat (Royal Guard) Old Casket of Protection
Harvester Hat (Geneticist) Old Midas Whisper
Autumn Headband (Ranger) Old Camouflage Rabbit Hood
Focus Beret (Sura) Old Blazing Soul
Inconspicuous Hat (Shadow Chaser) Old Shadow Handicraft
Oni Horns (Guillotine Cross) Old Circlet Of Bones
Sea Captain Hat (Mechanic) Old Driver Band (either colour)
Lyrica Hat (Maestro, Wanderer) Old Minstrel Song's Hat or Old Dying Swan
Deadman Bandana (Magician and Soul Linker classes) Old Magic Stone Hat or Old Wind Whisper
Ascendant Crown (Super Novice) any one Old headgear

Arch Bishops have no class hat: keep the Old Mitra. Compare the two hats' text before you trade: the trade throws away an Old headgear's enchants, so it pays most before you have enchanted it.

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