MapleStory Dual Blade is a Adventurer Thief Class who wields a dagger and blade but are not able to to use Claw and Throwing Star. Primary Stat is LUK (Luck). This guide applies Tempest Update where job advancement starts at (1st Job – 10 / 2nd Job – 30 / 3rd Job – 60 / 4th Job – 100). GMS has implemented Tempest but MapleSEA has not yet. However, this guide still works for both MapleStory versions in terms on what skills to prioritize.
Dual Blade 1st Job Skill Build Guide – Rogue (Level 10)
Flash Jump (Active)
Allows to leap forward while in mid-air. Higher skill level increases leap distance.
LV1: 38 MP.
LV5: 22 MP.
Side Step (Passive)
Permanently increases Dodge Rate.
LV1: +6% Dodge Rate.
LV10: +15% Dodge Rate.
Bandit Slash (Active)
Attack 3 enemies 1 time with a quick slash.
LV1: 10 MP, 186% Damage.
LV10: 13 MP, 330% Damage.
Dark Sight (Supportive)
[NOTE] Max Dark Sight required to unlock 4th Job Skill Advanced Dark Sight.
Hides in the shadows. With Dark Sight active, you can neither attack nor be attacked physically. Magical attacks from monster will be able to inflict damage even with Dark Sight enabled.
LV1: 23 MP, -23 Move Speed, Lasts 20 sec.
LV10: 5 MP, +10 Move Speed, Lasts 200 sec.
Skill Build: Everything maxed except Dark Sight, Bandit Slash and Side Step.
1. Add 1 SP into Bandit Slash.
2. Max Flash Jump.
3. Save remaining SP for 1st+ Job.
Dual Blade advancement is a little bit tricky. Nexon-Wizet decided to divide the 1st Job and 2nd Job Advancement into 2 parts (1st Job and 1st Job+ , 2nd Job and 2nd Job+). Dual Blade primary attacking skill will be Bandit Slash in 1st Job but soon to be replaced with Tornado Spin in 1st Job+ which allows you to travel and knockback multiple monsters very quickly! Therefore, once you got a Level 1 Bandit Slash and max Flash Jump, save the extra SP so you could max out the 3 essential skills in 1st Job+ quickly to further speed up your leveling progress! For MapleSEA players who have not receive Tempest Update, use SP (Skill Points) on maxing Dark Sight and Side Step.
Dual Blade 1st Job+ Skill Build Guide – Blade Recruit (Level 20)
Katara Mastery (Passive)
Permanently increases dagger-katara mastery and accuracy.
LV1: 14% Mastery, +12 Accuracy.
LV10: 50% Mastery, +120 Accuracy.
Self Haste (Supportive)
Temporarily increases Movement Speed and Jump. Permanently increases maximum Movement Speed.
LV1: 8 MP, +4 Speed, +5 Jump, +2 Max Speed. Lasts 20 sec.
LV10: 16 MP, +40 Speed, +23 Jump, +20 Max Speed. Lasts 200 sec.
Tornado Spin (Active)
Dashes forward quickly to perform a powerful spin attack against multiple enemies. Lv. 15 effects: Links to Lv. 10+ Flying Assaulter
LV1: 24 MP, Attack 3 enemies with 310% Damage.
LV15: 36 MP, Attack 6 enemies with 380% Damage.
Skill Build: Everything maxed except Bandit Slash (1st Job Skill)
1. Add 1 SP into Tornado Spin.
2. Max Self Haste, Katara Mastery and Tornado Spin.
3. Extra SP used to max 1st Job Skills (Dark Sight and Side Step).
4. Dump remaining SP into Bandit Slash.
Once you reach Level 20, add 1 SP (Skill Point) into Tornado Spin to replace Bandit Slash as the primary attacking skill. Then, max out both Self Haste (increase jump and move speed) and Katara Mastery (damage stabilizer and accuracy enhancer) before maxing Tornado Spin. After that, use the extra SP from 1st Job+ to max out Dark Sight and Side Step. Dark Sight will be required to unlock a 4th Job Skill (Advanced Dark Sight). Side Step will be a great help in avoiding enemy attacks during your training as this would mean less meso wasted on health potion consumption.
Dual Blade 2nd Job Skill Build Guide – Blade Acolyte (Level 30)
Fatal Blow (Active)
Attack 1 enemy 8 times with quick consecutive blows.
LV1: 21 MP, 76% Damage.
LV10: 30 MP, 94% Damage.
Slash Storm (Active)
[MASTERY BOOK] Slash Storm 20 required to unlock Level 11-20.
[NOTE] Max Slash Storm required to unlock 3rd Job Skill Bloody Storm.
Attack multiple enemies 3 times while moving forward.
LV1: 12 MP, Attack 3 enemies with 152% Damage.
LV20: 24 MP, Attack 6 enemies with 190% Damage.
Channel Karma (Supportive)
Temporarily increases weapon attack.
LV1: 15 MP, +1 Weapon Attack for 66 sec.
LV20: 22 MP, +30 Weapon Attack for 180 sec.
Physical Training (Passive)
Permanently increases LUK (Luck) and DEX (Dexterity).
LV1: +6 LUK, +6 DEX.
LV5: +30 LUK, +30 DEX.
Katara Booster (Supportive)
[REQUIRE] LV5 Katara Mastery.
Temporarily reduces regular and skill attack delay.
LV1: 30 MP, Lasts 20 sec.
LV10: 12 MP, Lasts 200 sec.
Skill Build: Everything maxed except Fatal Blow.
1. Add 1 SP into Slash Storm and 3 SP into Katara Booster.
2. Max Physical Training, Channel Karma, Katara Booster and Slash Storm.
3. Save remaining SP for 2nd Job+
Dual Blade 2nd Job+ Skill Build Guide – Blade Specialist (Level 50)
Has a chance to blind (reduce accuracy) enemies. Also works on boss at half the duration. Cooldown 60 sec.
LV1: 45 MP, 170% Damage, 50% Blind Chance, -4% Accuracy for 10 sec.
LV5: 65 MP, 250% Damage, 90% Blind Chance, -20% Accuracy for 50 sec.
Upper Stab (Active)
Attack multiple enemies 1 time by launching them in air. You can deal additional damage by attacking the enemies in the air.
LV1: 30 MP, Attack 4 enemies with 210% Damage, 44% Bonus Damage in Mid-Air.
LV10: 45 MP, Attack 8 enemies with 300% Damage, 80% Bonus Damage in Mid-Air.
[NOTE] Max Venom required to unlock 4th Job Skill Toxic Venom.
Has a chance to poison enemy. Poison does not stack and will not cause enemy health drop below 1.
LV1: 11% Poison Chance, 52% Damage/sec for 3 sec.
LV20: 30% Poison Chance, 90% Damage/sec for 6 sec.
Flying Assaulter (Active)
[MASTERY BOOK] Flying Assaulter 20 required to unlock Level 11-20.
Attack 4 enemies 4 times by flying down through the sky and slashing nearby enemies with a chance to stun while knockbacking them. You need to be in high mid-air to perform this skill. Lv. 10 effect: Links to Lv. 15 Tornado Spin and Lv. 10 Bloody Storm Mastery Book required to unlock Lv. 6.
LV1: 24 MP, 127% Damage, 10% Stun Rate for 4 sec.
LV20: 44 MP, 165% Damage, 20% Stun Rate for 6 sec.
Skill Build: Everything maxed except Venom (or Upper Stab + Flashbang)
1. Max Flying Assaulter.
2A. Max Upper Stab and Flashbang. Extra SP into Venom.
2B. Dump remaining SP into Venom.
There are 2 options here depending on your playing style. If you do not prefer to be stationary in 1 place, then dump all the skill points into Venom. If you wish to have some variety in attacking skill, max Upper Stab and Flash Bang (for bossing) and remaining SP are dumped into Venom. For me, I dump all skill points into Venom since I do not use Upper Stab and Flashbang at all during training. Furthermore, 3rd Job will have a better mobbing skill and single attack skill. Link Flying Assaulter with Tornado Spin to scout through the hunting ground quickly while killing monsters along the way instead of using Slash Storm and Flash Jump.
Dual Blade 3rd Job Skill Build Guide – Blade Lord (Level 60)
Bloody Storm (Active)
[REQUIRE] Max Slash Storm
Attack multiple enemies 3 times similarly to Slash Storm. Also enhances Link Skill’s damage such as Tornado Spin and Flying Assaulter.
LV1: 35 MP, Attack 6 enemies with 233% Damage. +12% Link Skill Damage.
LV20: 50 MP, Attack 8 enemies with 265% Damage. +20% Link Skill Damage.
Advanced Dark Sight (Passive)
[REQUIRE] Max Dark Sight.
Deals extra damage to enemy while attacking in Dark Sight with a chance to maintain in Dark Sight state. It also has a chance to reactivate Dark Sight should your Dark Sight be deactivated while attacking.
LV1: +4% Damage. 17% chance to maintain Dark Sight. 4% Reactivate Dark Sight.
LV5: +20% Damage. 49% chance to maintain Dark Sight. 20% Reactivate Dark Sight.
Mirror Image (Supportive)
[MASTERY BOOK] Mirror Image 20 required to unlock Level 11-20.
Summons a doppelganger that looks just like you to assist in attacks for a certain amount of time. Your doppelganger cannot use certain skills.
LV1: 40 MP, 13% Doppelganger damage. Lasts 80 sec.
LV20: 67 MP, 70% Doppelganger damage. Lasts 200 sec.
Chains of Hell (Active)
Attack 1 enemy 10 times with critical and has a chance to stun.
LV1: 50 MP, 67% Damage, 1% Stun Rate for 1 sec.
LV20: 75 MP, 105% Damage, 10% Stun Rate for 4 sec.
Life Drain (Passive)
Has a chance to convert a percentage of damage inflicted against an enemy as HP replenishment. However, you can’t recover more than 20% Max HP.
LV1: 2% chance to convert 2% damage as HP.
LV5: 10% chance to convert 10% damage as HP.
Enveloping Darkness (Passive)
Permanently increase Max HP, Abnormal Status and Elemental Resistance.
LV1: +2% MaxHP, +6% Abnormal Status and Elemental Resistance.
LV10: +20% MaxHP, +30% Abnormal Status and Elemental Resistance.
Shadow Meld (Passive)
[MASTERY BOOK] Shadow Meld 20 required to unlock Level 11-20.
Increases your chance to dodge incoming attacks. A successful dodge will also put you into a 1 second frenzy where your weapon attack increases and every hit becomes a Critical.
LV1: 11% Dodge Rate. Upon successful dodge: +1 Weapon Attack.
LV20: 30% Dodge Rate. Upon successful dodge: +15 Weapon Attack.
Skill Build: Everything maxed.
1. Add 1 SP into Bloody Storm and Chains of Hell.
2. Max Life Drain, Mirror Image and Bloody Storm.
3. Max Shadow Meld, Enveloping Darkness, Chains of Hell and Advanced Dark Sight.
4. Extra SP is used to max 2nd Job Skills (Venom, Flashbang, Upperstab)
Dual Blade 3rd Job will be primarily using 2nd Job Skills (Flying Assaulter linking with Tornado Spin) since Bloody Storm is still not powerful enough to match both of these combo skills unless its at its max level. However, you can add 1 SP into both 3rd Job active skills (Bloody Storm and Chains of Hell) if you wish to try them out. Max Life Drain first to save some HP Potions during long training followed by Mirror Image (Doubles your attack at half damage of original attack) and Bloody Storm (Passively enhances Flying Assaulter and Tornado Spin damage). Once those 3 are maxed, you can max the remaining skills up to your preference. If you do early bossing, Chains of Hell works great but it will not be able to drag the boss or stationary enemies to your position. You will need to stand close to them in order to execute the Chains of Hell attack. For fast leveling, max Shadow Meld (additional damage boost for 1 sec when you dodge enemy attack) and Enveloping Darkness (boost your Max HP – useful when eliminating powerful monsters). Chains of Hell and Advanced Dark Sight can be maxed last. The remaining SP (Skill Points) can be distributed to 2nd Job+ such as Venom. In 4th Job, Toxic Venom will require a max Venom. Once your Bloody Storm is at max level, use that as your primary attacking skill on tougher monster for better EXP rate. Tougher monsters (around Level 85+) are the ones that can’t be killed in 1 hit with either Flying Assaulter or Tornado Spin.
Dual Blade 4th Job Skill Build Guide – Blade Master (Level 100)
Dual Wield Expert (Passive)
[REQUIRE] LV20 Katara Mastery
[MASTERY BOOK] Dual Wield Expert 30 required to unlock Level 11-30.
Permanently increases dagger mastery, weapon attack, accuracy, and avoidability.
LV1: 56% Mastery, +1 Weapon Attack, +1% Accuracy and Avoidability.
LV30: 70% Mastery, +30 Weapon Attack, +15% Accuracy and Avoidability.
Toxic Venom (Passive)
[REQUIRE] Max Venom.
Enhances Venom poison damage and damage. Poison can stack up to 3 times.
LV1: 32% Poison Chance, 115% Damage/sec for 5 sec.
LV10: 50% Poison Chance, 160% Damage/sec for 8 sec.
Final Cut (Active)
Attack 8 enemies 1 time with a chance to cause instant death! However, this requires sacrificing your health to inflict enormous damage. Also temporarily boost skills with additional damage. This skill gives 1 sec invincibility upon activation and has a long cooldown.
LV1: 150 MP, -30% HP, 1420% Damage, 1% Instant Death, +16% Damage for 15 sec. Cooldown 148 sec.
LV30: 400 MP, -10% HP, 2000% Damage, 15% Instant Death, +60% Damage for 60 sec. Cooldown 90 sec.
Blade Fury (Active)
Attack multiple enemies 4 times without moving from current position while ignoring a portion of enemy’s defense.
LV1: 40 MP, Attack 5 enemies with 136% Damage, Ignores 6% Defense.
LV30: 65 MP, Attack 8 enemies with 165% Damage, Ignores 20% Defense.
Mirrored Target (Supportive)
[REQUIRE] LV20 Mirror Image.
[MASTERY BOOK] Mirrored Target 20 required to unlock Level 11-20.
Permanently increases your Defense and Avoidability. Also turns your Mirror Image into a dummy that draws enemy attacks and absorbs damage. This skill can only be used when Mirror Image is active.
LV1: (ACTIVE EFFECTS) 60 MP, 2600 Dummy’s HP. Absorbs 5% Damage. Lasts 15 sec. (PASSIVE EFFECTS) +10% Dodge Rate, +2% Weapon and Magic Defense.
LV30: (ACTIVE EFFECTS) 135 MP, 20000 Dummy’s HP. Absorbs 5% Damage. Lasts 90 sec. (PASSIVE EFFECTS) +25% Dodge Rate, +60% Weapon and Magic Defense.
Temporarily increases weapon attack and allows to resist knockback.
LV1: 40 MP, +1 Weapon Attack and 32% chance to resist knockback for 90 sec.
LV30: 90 MP, +30 Weapon Attack and 90% chance to resist knockback for 210 sec.
Phantom Blow (Active)
Attack 1 enemy 6 times while ignoring their defense.
LV1: 30 MP, 142% Damage, Ignores 1% Defense.
LV30: 42 MP, 200% Damage, Ignores 30% Defense.
Permanently increases your Critical Hit Rate and minimum Critical Damage.
LV1: +7% Critical Rate, +7% Minimum Critical Damage.
LV10: +25% Critical Rate, +25% Minimum Critical Damage.
Sudden Raid (Active)
Attack 15 enemies by setting them on fire! Affects all monsters within the entire screen. Fire deals damage overtime (DoT) every second.
LV1: 290 MP, 715% Damage, 94% Damage Over Time for 5 sec. Cooldown 60 sec.
LV30: 290 MP, 1150% Damage, 210% Damage Over Time for 10 sec. Cooldown 30 sec.
Maple Warrior (Supportive)
Temporarily boost all stats by percentage.
LV1: 10 MP, +1% All Stats, Lasts 30 sec.
LV30: 70 MP, +15% All Stats, Lasts 900 sec.
Hero’s Will (Active)
Removes all status effects such as Cursed/Seduce.
LV1: 30 MP, Cooldown 600 sec.
LV5: 30 MP, Cooldown 360 sec.
Skill Build: Everything maxed except Sudden Raid.
1. Add 1 SP into Blade Fury, Toxic Venom, Sharpness, Mirrored Target.
2. Max Dual Wield Expert, Sharpness, Thorns.
3. Max Final Cut, Blade Fury, Mirrored Target, Toxic Venom.
4. Max Maple Warrior, Phantom Blow, Hero’s Will.
5. Dump remaining SP into Sudden Raid.
Congratulations once you advanced as a Blade Master in 4th Job. You will have 3 methods of training which are (1st method) Use Flying Assaulter + Tornado Spin to stack mobs then Blade Fury them to death OR (2nd method) Use Flying Assaulter + Bloody Storm and repeat (when u kill mobs with just those 2) OR (3rd method) Spam Blade Fury at close range and only use Bloody Storm to approach monsters when they are out of reach or simply 100% avoid enemy attack especially bosses when they are about to cast their spells. If you have Phantom Blow, use it against 1 enemy as its very effective but not as good as Blade Fury nor Bloody Storm against 2 or more enemies. Start by unlocking Blade Fury, Toxic Venom, Sharpness and Mirrrored target by adding 1 SP (Skill Point). Even at level 1, they are seriously helpful in enhancing 2nd and 3rd Job Skills. Next, max Dual Wield Expert, Sharpness and Thorns in sequence to boost your min-max damage considerably for all skills before mastering Blade Fury as this will be your primary attacking skill for bossing and mobbing depending on how you use it. If you have found yourself a skill book for Final Cut, then max that one first to gain some further damage boost. However, for me I would max out Blade Fury first to target more enemies unless the training ground only has lesser than 6 at most of the time. Finally, max the other skills listed in the skill build to further enhance your damage. Sudden Raid is maxed last since its unspammable and cost way too much mana for a Dual Blade.
Dual Blade Hyper Skills
Bloody Storm – Reinforce (Level 143) +20% Blood Storm’s damage.
Bloody Storm – Spread (Level 162) +2 Mobs Bloody Storm’s will hit.
Bloody Storm – Extra Strike (Level 183) +1 extra number of attack.
Phantom Blow – Reinforce (Level 149) +20% Phantom Blow damage.
Phantom Blow – Guardbreak (Level 168) +20% PDR towards Phantom Blow.
Phantom Blow – Extra Strike (Level 189) +1 extra number of attack.
Sudden Raid – Reinforce (Level 155) +20% Sudden Raid damage.
Sudden Raid – Cripple (Level 177) +20% DoT on Sudden Raid.
Sudden Raid – Cooldown Cutter (Level 195) -20% Cooldown time for Sudden Raid.
Blade Clone (Level 150)
A hidden blade is summoned to add 1 line of hit at 140% damage for which lasts 60 seconds. Cooldown time: 90 seconds. Stack with Mirror Image
Asura’s Anger (Level 170)
Damage: 500%, Defense Ignored: 100%. Number of attacks: 3, Mobs: 10, Must hold down the key for 10 seconds then release to do the best damage. Cooldown: 90 seconds, Other effects: Monster cannot hit you as long as the skill is active. Cap damage 9,999,999
Epic Adventure (Level 200)
+10% Damage, Damage Cap + 50,000, Duration: 60 seconds, Cooldown: 120 seconds, works on legendary Explorers only.
MAPLESTORY OLD TO NEW OFFICIAL SKILL NAMES
Dual Blade Hyper Skills
Bloody Storm – Reinforce -> SAME
Bloody Storm – Extra Target -> Bloody Storm – Spread
Bloody Storm – Bonus Attack -> Bloody Storm – Extra Strike
Phantom Blow – Reinforce -> SAME
Phantom Blow – Ignore Guard -> Phantom Blow – Guardbreak
Phantom Blow – Bonus Attack -> Phantom Blow – Extra Strike
Sudden Raid – Reinforce -> SAME
Sudden Raid – DoT Reinforce -> Sudden Raid – Cripple
Sudden Raid – Cooltime Reduce -> Sudden Raid – Cooldown Cutter
Hidden Blade -> Blade Clone
Asura -> Asura’s Anger
Epic Adventure -> SAME