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
STR AGI VIT INT DEX LUK +5 +6 +7 +13 +8 +4
Talent Bonuses
POW STA WIS SPL CON CRT +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.

See Biolo Job Change Guide for detailed information.

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.

Building on the Genetic class, Cart Cannon is a primary build many use. It relies on having VCT reduction to make it feel smooth. With enough cast time reduction, you can theoretically go 1 DEX. For this build, you should focus on ranged-physical modifiers, and STR & INT stats.

Skill Notes:

• 3s Variable Cast Time, 0.5 seconds after cast delay.
• Ignores FLEE
• Treats Hard DEF/RES as "Soft" DEF
• Create Wooden Warrior makes damage hit twice, and reduces animation delay

Cart Cannon doesn't directly use Talent stats in its formula. POW is most important, followed by CON. Then can choose STA and/or WIS depending on personal preference of resistance.

Talent / Stat	Amount	Notes
Stats
STR	120-130	Increases damage due to weapons used by merchant class
AGI	1-90	Get enough to reach 193 ASPD with your standard used buffs
VIT	90	For Stun immunity and HP
INT	120-130	Used in CC damage formula; also helps reduce VCT
DEX	1-120	120 is needed by some best-in-slot cards/equipment; also provides some ATK and main stat used for VCT reduction
LUK	1+	Adds 1 ATK per multiple of 3
Talents
POW	100	Main source of damage
STA	0-35	Adds RES; Leave in multiple of 3
WIS	0-35	Adds MRES; Leave in multiple of 3
SPL	0	Not needed.
CON	100	Extra P.ATK
CRT	0	Not needed

WORK IN PROGRESS

Equip	Comments
Headgear (Upper)
Catherina Von Blood [1]	Generic HP/SP Leech
Biolab Taurus Diadem [1]	Set Combo with Coolant Injection [2] If both at +12 (as an example), 145% CC damage, 50% long range Additional effects with weapon Enchant and Boots combo (see below)
Harvester Hat [1]	100% VCT reduction of Cart Cannon +9 increases CC damage by 15%
Ignis Cap Type K [1]	VCT, Ranged, Small/Medium, FCT 0.2s Set Combo with Saphir Hall-OS [2] 4% CC damage per 2 refine levels of Mace
Cat paw Potential Hat [1]	EXP, Range, All Sizes, FCT 0.3s Set Combo with Kitten Shield [1] Ranged, ATK, and POW
X	X
Headgear (Middle)
Purified Pigeon [1]	+12 All Stats, ACD Set Combo with Vivatus Fides Rapier [2] ATK, MATK, and ACD
Seraphim Coronet	120 Base INT required; Enchantable
Ancient Morocc Noble Jewelry [1]	ATK/MATK bonuses depending on base stats; Use with Marduk Card or Pharaoh, if you're rich/lucky
Cherub Coronet [1]	120 Base INT required, ATK, Boss damage
Crow Tengu Mask [1]	120 Base STR required for ATK, physical, and ranged; ATK, ACD, HP/SP Leech
X	X

Coming soon.

Coming soon.

Coming soon.

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 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 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 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 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 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

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

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 Concentration ✔ Awakening ✔ Berserk ✔

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.
  • Best if mutated from Filir for PvM. Vanilmirth is a good alternative.

• 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.
  • Best if mutated from Vanilmirth or Amistr.

• 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.

Alchemist • Biochemist • Geneticist • Biolo
2nd Class Skills	Acid Terror • Aid Berserk Potion • Aid Potion • Alchemical Weapon • Axe Mastery • Biochemical Helm • Bomb • Potion Research • Prepare Potion • Spiritual Potion Creation (variant 1) • Spiritual Potion Creation (variant 2) • Spiritual Potion Creation (variant 3) • Summon Flora • Summon Marine Sphere • Synthesized Shield • Synthetic Armor
	Homunculus-related Skills	Bioethics • Biotechnology • Call Homunculus • Creature Creation • Cultivation • Drillmaster • Flame Control • Heal Homunculus • Homunculus Resurrection • Vaporize
Transcendent Skills	Acid Bomb • Aid Condensed Potion • Alchemy • Cultivate Plant • Full Chemical Protection • Potion Synthesis
3rd Class Skills	Blood Sucker • Bomb Creation • Cart Boost (Geneticist) • Cart Cannon • Cart Remodeling • Cart Tornado • Change Material • Crazy Vines • Demonic Fire • Fire Expansion • Full Throttle • Hallucination Drug • Hell Plant • Item Sling • Mandragora Howling • Mixed Cooking • Special Pharmacy • Spore Explosion • Sword Training • Thorn Trap • Thorn Wall
4th Class Skills	Acidified Zone Fire • Acidified Zone Ground • Acidified Zone Water • Acidified Zone Wind • Bionic Mastery • Bionic Pharmacy • Explosive Powder • Full Shadow Protection • Mayhemic Thorns • Research Report • The Whole Protection
	Summon Skills	Create Creeper • Create Hell Tree • Create Wooden Fairy • Create Wooden Warrior
Quests	Alchemist Job Change Guide • Alchemist Skill Quest • Rebirth Walkthrough • Geneticist Job Change Guide • Fourth Class Job Change Quest Skip • Biolo Job Change Guide
Weapons	Axe • Dagger • Mace • One Handed Sword • Cannon Balls

Classes of Ragnarok Online
Novice Class	Novice • High Novice • Super Novice • Hyper Novice*
First Class / High First Class	Swordman • Mage • Merchant • Acolyte • Thief • Archer
Second Class	Knight • Crusader • Wizard • Sage • Blacksmith • Alchemist • Priest • Monk • Assassin • Rogue • Hunter • Bard • Dancer
Transcendent Second Class	Lord Knight • Paladin • High Wizard • Scholar • Mastersmith • Biochemist • High Priest • Champion • Assassin Cross • Stalker • Sniper • Minstrel • Gypsy
Third Class	Rune Knight • Royal Guard • Warlock • Sorcerer • Mechanic • Geneticist • Arch Bishop • Sura • Guillotine Cross • Shadow Chaser • Ranger • Maestro • Wanderer
Fourth Class	Dragon Knight • Imperial Guard • Arch Mage • Elemental Master • Meister • Biolo • Cardinal • Inquisitor • Shadow Cross • Abyss Chaser • Windhawk • Troubadour • Trouvere
1st Expanded Class	TaeKwon Kid • Ninja • Gunslinger
2nd Expanded Class	TaeKwon Master • Soul Linker • Kagerou • Oboro • Rebel
3rd Expanded Class	Star Emperor • Soul Reaper • Shinkiro* • Shiranui* • Night Watch*
4th Expanded Class	Sky Emperor • Soul Ascetic
Doram	Summoner • Spirit Handler*