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RAGNA
PLACE
Biolo
Job Base(s):Geneticist
Job Type:4-2
Job Level:50
Race:Human
Changes At:Verus
Number of Skills:15
Total Skill Points:80
Total Quest Skills:0
Job Bonuses
STRAGIVIT INTDEXLUK
+5+6+7+13+8+4
Talent Bonuses
POWSTAWISSPLCONCRT
+4+3+4+4+6+10

Biolo, the advanced class for Geneticist, is an expert in Biotechnology. They can summon various plant-based creatures to help them in battle. In addition, Biolo is capable of supporting allies with various potions and skills.

Job Change Guide

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See Biolo Job Change Guide for detailed information.

Builds

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NOTE: While all listed gears in this section are viable for usage, it is encouraged to test the item combinations you desire for your character first by going to the iRO Wiki Calculator, consult any knowledgeable players in your group or in iRO Wiki Discord, or read forum/watch video guides before purchasing any item included in this list.
Until this page is actually updated, you can refer to Jefuu's Guide to Geneticist > Biolo for a current idea of builds and equipment.

Class Data

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Skills

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See Alchemist Skills or Biochemist for 2nd class Skills. See Geneticist Skills for 3rd class Skills.

Skill Description Levels Type
Crafting Skills
Bionic Pharmacy Create medicines and catalysts used for 4th job skills. Each cast consumes a 1000275.png Beaker. 1 Active
Bionics Mastery Increased stats of summoned creatures such as Create Creeper, Create Wooden Warrior, Create Wooden Fairy and Create Hell Tree. 10 Passive
Equipment Protection Skills
Group Protection Protects weapons and equipment of the caster and nearby party members from being stripped or destroyed. 5 Supportive
Full Shadow Protection Protects shadow equipment of the target from being stripped or destroyed. 4 Supportive
Summon Skills
Create Creeper Summons a tough vine monster to aid you in combat. 5 Supportive
Create Wooden Warrior Summons a large warrior golem made of hardy wood to aid you in combat. Enhances Cart Cannon and Cart Tornado when summoned. 5 Supportive
Create Wooden Fairy Summons a whimsical fairy golem made of hardy wood to aid you in combat. Enhances Spore Explosion when summoned. 5 Supportive
Create Hell Tree Summons a massive tree from hell, which can attack with an AOE skill and buffs their master every 40 seconds. 5 Supportive
Combat Science Skills
Acidified Zone Earth Throw an 1000277.png Earth Acid Bottle at an enemy, inflicting a 7 hit Earth element ranged physical damage to the target and its surrounding area. 5 Offensive
Acidified Zone Wind Throw a 1000278.png Gale Acid Bottle at an enemy, inflicting a 7 hit Wind element ranged physical damage to the target and its surrounding area. 5 Offensive
Acidified Zone Water Throw an 1000279.png Icicle Acid Bottle at an enemy, inflicting a 7 hit Water element ranged physical damage to the target and its surrounding area. 5 Offensive
Acidified Zone Fire Throw a 1000276.png Flame Acid Bottle at an enemy, inflicting a 7 hit Fire element ranged physical damage to the target and its surrounding area. 5 Offensive
Explosive Powder Scatters a volatile powder that explodes on contact, dealing Melee Physical damage to enemies surrounding the user for 3 hits. 5 Offensive
Mayhemic Thorns Summons a giant, thorny plant to attack a target and the surrounding area, dealing Ranged Physical damage within range for 3 hits. Has a chance to critical hit. 10 Offensive
Buff Skills
Research Report Prepares and presents a report of the caster's research. Improves Acidified Zone Skills and increases damage against Formless and Plant race monsters when using them. Also increases the number of times Explosive Powder and Mayhemic Thorns hit. 1 Supportive

Skill Tree

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Biolo Skill Tree

Job & Talent Bonuses

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Stat\Amount +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12
STR 18 35 36 41 50
AGI 9 21 30 40 41 48
VIT 5 8 11 16 19 25 26 42
INT 1 2 8 13 24 35 36 37 42 45 46 48
DEX 3 7 14 20 29 37 40 44
LUK 17 32 44 49
POW 18 21 25 27 33 38
STA 4 23 49 45 52
WIS 10 27 39 43
SPL 4 15 34
CON 6 11 19 22 31 47
CRT 2 12 15 24 28 29 32 39 44 50

ASPD

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Equip Attack Speed From 2nd Class
Bare Handed 156 0
Shield -4 0
Dagger -10 0
Sword (One Handed) -4 +1
Axe (One Handed) -11 −6
Axe (Two Handed) -11 +1
Mace -5 0
ASPD Potions Usable
645.png Concentration
656.png Awakening
657.png Berserk

Mayhemic Thorns (2026)

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Summons the giant thorn plant to the target and strike the surrounding area, deals long ranged physical damage to target and surrounding enemies around the target with the range for 3 hits.

Deals higher damage for 4 hits when using under Research Report buff.

Damage is additionally increased according to the user's base level and POW, and critical damage is applied according to the user's critical probability.

In the case of critical damage, half of the total critical damage increase options are applied.

Talent / Stats

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Talent / Stat Amount Notes
Stats
STR 125-130 Base ATK source and damage.
AGI 30-90 Increases Aspd, to reuse skill faster in combination with cooldown reduction gears.However, easily reachable with current gears.
VIT 70-80 Freely adjust according to your playstyle
INT 30-40 This build requires a lot of SP use but can be remedied with SP leech effects/potions.
DEX 100-110 Long Range Damage source
LUK 125-130 Increases Crit Rate and gives various bonuses in combination with Cards / Equips.
Talents
POW 100 Main source of damage post 200.
STA 0 Not needed.
WIS 0 Not needed.
SPL 0 Not needed.
CON 35 Extra P.ATK.
CRT 100 Boosts crit damage modifier.


Equipments

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Equip Best in Slot? Card Options Comments
Headgear (Upper)
401290.png +14 (A) Bankrupt Headgear [1]
  • Good early headgear for merchant class
400381.png +14 (A) Crown of Good and Evil (Biolo) [1]
400974.png +14 (A) Future Yoyo King Hat [1]
401043.png +14 (A) Kiel Successor Doll [1]
401002.png +14 (A) Boitata Cap [1]
Headgear (Middle)
19437.png Little Garden or 410615.png Little Garden-LT
  • None
  • Good source of ATK and critical damage based on base LUK.
410254.png Ancient Morocc Noble Jewelry [1] or 410553.png Ancient Morocc Noble Jewelry-LT [1]
  • Good source of ATK.
  • Also increases damage and helps with ACD reduction if paired with Marduk or Pharaoh card.
410531.png Hero Follower Mask [1]
410345.png Smiling Eyes [1]
  • Good source of ATK % and physical damage based on base LUK.
Headgear (Lower)
420388.png Grey Wolf Cub in Mouth
  • None
  • Some talent stats and MHP.
  • For every 10 base levels, increases physical damage against all size monsters by 1%.
420605.png True Gangster Scarf
  • None
  • Provide great amount of raw ATK.
  • Include with 15% drop rate chance, good for farming build.
420438.png Constellation Orb
  • None
420569.png Cosmic Star Blessing
  • None
420390.png Khon (Rock)
Armor
450356.png +13 Abyss Lake Roaring Armor [1]
  • Good source of damage and All Stats increase for VCT.
450338.png +13 Screaming Ghost Party [1]
  • Good source of damage and All Stats increase for VCT.
450169.png +14 (A) Nebula Armor of Power [1]
450358.png +14 (A) or more Abyss Lake Roaring Armor-LT [1]
450516.png +14 (A) Thorn Armor [1]
Weapon
500039.png +14 (A) Red Lotus Sword-LT [2]
500065.png +14 (A) Blood Rapier [2]
500054.png +14 (A) Dim Glacier Sword [1] or 590047.png +14 (A) Dim Glacier Mace [1]
520062.png +14/15 (A) Thorn Breaker [3]
  • Crucial set to eliminate Mayhemic Thorns cooldown.
  • Provide huge skill damage for skill and give HP leech.
Shield
460066.png +14 (A) Fake Alloy Pot-LT [1]
460138.png +14 (A) Trap Follower Shield [1]
460117.png +14 (A) Dragonic Shield [1]
  • Provide great amount of long range damage.
Garment
480023.png +11 or more Arabian Manteau [1]
  • Good source of crit and critical damage.
480479.png +14 (A) or more Royal Prontera Cape [1]
  • Good source of ATK and other talent stats.
  • Increases physical damage by a LOT.
  • Provides All Stats + 15 and ACD reduction.
480557.png +14 (A) Black Cat Backpack [1]
  • Good source of ATK, CRI and other talent stats.
  • Increases critical damage by a LOT.
480540.png +14 (A) Royal Alberta Cape [1]
480681.png +15 (A) Juncea Follower Wing [1]
  • High damage output from huge amount of property modifier.
  • Provide high amount of talent stats.
Shoes
470097.png +14 Demon Hunter Shoes [1]
  • Provides MoT Effect - Penetrates physical defense and increases damage depending on enemies' defense.
  • Also provides some ATK %.
470289.png +12 (B) or more Ancient Mechanic Greaves [1]
  • Good source of ATK, POW and other talent stats.
  • Increases physical damage by a LOT and reduces fixed casting time by 0.7 second.
470355.png +14 (A) Pantheon Boots [1]
  • Good source of ATK, POW and other talent stats.
  • Increases physical damage by a LOT and reduces fixed casting time by 0.5 second.
470345.png +14 (A) Legendary Dragon Shoes [1]
470414.png +14 (A) Cycle Follower Greaves [1]
  • Provide a lot of damage modifier such as critical damage, long range damage and size modifier.
Accessories
490243.png Ring of Silver Claw [1]
  • Crit + 50 and increases critical damage.
490545.png Overdrive Rampage [1]
  • Good source of physical damage and ATK.
490628.png Fake Alloy G Module [1]
490927.png Royal Necklace [1]
490787.png Dragon Thorns Plant Hero [1]
491010.png Dim Glacier Ring of Resonance (Biolo) [1]
490857.png Ring of Evil (Biolo) [1]
490791.png Faceworm Queen's Scale [1]
  • Increase POW, CON, critical damage and physical damage greatly.


Shadow Equipment

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Armor

Equip Required Level Rcommended Refine
24679.png Maximum Mammoth Shadow Armor 1 10
24663.png Full Penetration Shadow Armor 1 10
24872.png Full Power Shadow Armor 200 10
24828.png M. Biolo Shadow Armor[Enchant with 312228.png BO Soul (Mayhemic Thorns)] 200 10
1270009.png Bow Master Shadow Armor 200 10
1270013.png Fatal Master Shadow Armor 200 10

Weapon

Equip Required Level Rcommended Refine
24755.png Concentration Shadow Weapon 1 10
24751.png Physical Power Shadow Weapon 1 10
24792.png Master Shadow Weapon 200 10
24881.png Corrupted Shadow Weapon 1 10

Shield

Equip Required Level Rcommended Refine
24756.png Concentration Shadow Shield 1 10
24752.png Physical Power Shadow Shield 1 10
24793.png Master Shadow Shield 200 10
1270048.png Corrupted Shadow Shield 1 10

Shoes

Equip Required Level Rcommended Refine
24680.png Maximum Mammoth Shadow Shoes 1 10
24664.png Full Penetration Shadow Shoes 1 10
24873.png Full Power Shadow Shoes 200 10
24829.png M. Biolo Shadow Shoes [Enchant with 312228.png BO Soul (Mayhemic Thorns)] 200 10
1270010.png Bow Master Shadow Shoes 200 10
1270014.png Fatal Master Shadow Shoes 200 10

Pendant

Equip Required Level Rcommended Refine
24682.png Maximum Mammoth Shadow Pendant 1 10
24662.png Full Penetration Shadow Pendant 1 10
24876.png Focusing Shadow Pendant 200 10
24803.png M. Biolo Shadow Pendant [Enchant with 312228.png BO Soul (Mayhemic Thorns)] 200 10
1270012.png Bow Master Shadow Pendant 200 10
1270016.png Fatal Master Shadow Pendant 200 10

Earring

Equip Required Level Rcommended Refine
24681.png Maximum Mammoth Shadow Earring 1 10
24661.png Full Penetration Shadow Earring 1 10
24877.png Focusing Shadow Earring 200 10
24830.png M. Biolo Shadow Earring [Enchant with 312228.png BO Soul (Mayhemic Thorns)] 200 10
1270011.png Bow Master Shadow Earring 200 10
1270015.png Fatal Master Shadow Earring 200 10

Costume

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Explosive Powder (2026)

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Coming soon.

Acidified Zone (2026)

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Coming soon.

Homunculus S

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Main article: Homunculus S
NOTE: The section below may be outdated due to numerous changes since it was originally written. Do not be surprised if some of the descriptions differ from the other reputable website contents or current in-game descriptions and/or functions of this system.

Here is a quick breakdown of the homunculus and their uses:

  • Eira (Scope: PvM, PvP and MVP) - Being one of the unfavorite Homunculi S that doesn't get enough attention, Eira should by no means be ignored. She has Overed Boost, which temporarily provides her owner with ludicrous amounts of Flee Rate (sets Flee Rate to 500 when mastered), which can make a big difference in dire situations. And in case of a defeat, Eira can be a great backup. With Light of Regenerate, she'll bring her owner back to life. On the other hand, Eira is the fastest Loyalty farming Homunculus S ever due to how Overed Boost can make her hungry really fast. Some of Eira's skills also need certain Loyalty levels, so it's best to breed it from a basic Homunculus that has "Loyalty consuming skills" like Self-Destruction or S.B.R.44.
  • Bayeri (Scope: PvM) - A sturdy unicorn with attitude. Bayeri uses Stein Wand to protect his owner and provides Holy property area damage. However, its biggest weakness is that Heilage Stange is interruptable, which makes it an unpopular choice of Homunculus S amongst most Geneticists. Its skills, when not interrupted, can be useful for leveling, but not so useful for much else. Although Stahl Horn could be useful for PvP, there are better options availble to go with.
  • Sera (Scope: PvM, PvP, WoE and MVP) - The ultimate all purpose Homunculus S. Sera provides her owner with Pain Killer, a massive damage reduction boost that buys her owner a window of opportunity to defeat an MVP (or another player) without being barraged with massive damage. Very useful for solo PvM as well due to Poison Mist and Needle of Paralysis.
  • Dieter (Scope: PvM, PvP, WoE and MVP) - The most popular of the Homunculi S. Dieter provides his owner with Pyroclastic, a significant damage boost, as well as Lava Slide and Magma Flow against monsters. Dieter is very sturdy, which combined with his area ability, makes him possibly the best Homunculus S. Dieter excels at PvM and MVP, which is why it is a big favorite amongst most Geneticists.
  • Eleanor (Scope: PvM and PvP) - Probably one of the least loved Homunculi S, brings the damage but not much else. Eleanor will slaughter any target in sight, by chaining Sonic Claw, Silvervein Rush and Midnight Frenzy for big damage. However, she does not perform well as support, which makes her one of the least used Homunculi S. May have a place in PvP, but then again, some of the other Homuncunuli S skills will prove more useful. She has no area attacks, which makes her fairly useless in PvM except for picking off single targets.
    • Best if mutated from Filir.


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