Mobile Legends: Patch 1.6.66 Full Notes and Updates


Mobile Legends: Patch 1.6.66 Full Notes and Updates

John Dave Rossel
Updated On: 
The MLBB Patch 1.6.66 update has been released.
The new patch update added a ton of new content including the new mage hero Xavier.
The Ranked Season 23 will end on 25th March,

The Mobile Legends: Bang Bang (MLBB) Patch 1.6.66 update has been released. The new patch cycle delivers a ton of new and exciting content. There are also a few balance changes for heroes and the battlefield, which may shake up the meta. A new mage hero named Xavier has also been released in the MLBB Patch 1.6.66 update along with new in-game events. The Ranked Season 23 will also conclude on 25th March with the next season arriving soon after. A few bug fixes will also be implemented in the patch update as well as system adjustments to improve the performance of the game for certain devices.

New Hero


The new hero is classified as a mage and can be unlocked in the shop for 32,000 BP or 599 Diamonds.

Xavier Hero Preview
John Dave

Hero Adjustments



  • Extra Damage: 150% → 125%

  • New Effect: Melissa now also deals increased damage to creeps.

Eyes on You!

  • Damage Transfer: 65% → 70%

  • Mana Cost: 50-0 → 75-0

  • New Effect: Muddles can now ink summoned units.

(The above adjustments are summarized as follows:)

  • Damage Against Linked Heroes: 197.5% → 187.5%

  • Damage Against Linked Summoned Units: 150% → 187.5%

  • Damage Against Creeps: 100% → 125%

  • Damage Against Minions & Unlinked Summoned Units: 150% → 125%

Go Away!

  • New Effect: Melissa now gains 6-10 Physical & Magic Defense when the skill is active.

  • New Effect: The field will now move with Melissa once, when she touches the boundary.

  • Cooldown: 40-32s → 50-40s



  • Now each of Masha's HP bars can enjoy 100% of Masha's extra HP.

  • HP Growth: 52 → 165

Ancient Strength

  • Extra Attack Speed Per 1% HP Lost: 1% → 1.8%; Max Extra Attack Speed: 80% → 180%

  • Energy Regen greatly reduced.

Wild Power

  • Base Damage: 120 → 75

  • Extra Damage: 1%-2.5% of the Target's Max HP → 1.5%-3.5% of Masha's Max HP

  • HP Cost: 1%-1.5% of 3 HP Bars → 3% of 1 HP Bar

Howl Shock

  • The energy shock can now penetrate minions.


  • Damage: 100% Physical Attack + 15%-25% of the Target's Max HP → 500-700 + 30%-50% of Masha's Extra Max HP

  • HP Cost: 30% → 50%


Combat Ritual

  • Base Damage: 200-350 → 268-300

Art of Hunting

  • Base Damage: 185-285 → 210-360

  • Cooldown: 9s → 8-6s

  • Dash distance slightly increased; skill casting experience optimized.

Power of Wildness

  • Revamped: Hilda gains a permanent stack on each kill or assist (up to 8 stacks) → Hilda's skill and basic attack applies a mark to the target on hit (up to 6 stacks)

  • Base Damage: 800-1000 → 600-1000

  • Damage Increase Per Stack: 25-35 → 2.5-4.5% of the Target's Max HP

  • Damage Increase At Full Stacks: 50% Total Damage → 5-9% of the Target's Max HP (that is, deals damage equal to 20-36% of the target's Max HP in total)


Earthen Force

  • Removed Effect: Grock gains extra Magic Defense when near a wall.

  • New Effect: Grock gains 0.6 Physical Defense for each point of extra Physical Attack he possesses. HP Regen When Near A Wall: 16-39 → 22-90

  • Changed the name from Ancestral Gift to Earthen Force.

Guardian's Barrier

  • The shockwave can no longer be blocked by Lolita's shield; flying speed also slightly increased.

Wild Charge

  • Removed Effect: Hitting a wall refunds 30% of the skill's cooldown.

  • New Effect: Grock stuns nearby enemies for 1.8s upon hitting a wall.

  • Cooldown: 50-40s → 46-38s


Deadly Thorns

  • Deadly Thorns Damage: 95 + (5 × Hero Level) + 2% Max HP → 95 + (5 × Hero Level) + 1.5% Max HP

  • Bonus HP From Equipment & Emblems: 40% → 30%

  • Deadly Thorns now prioritizes Enemy heroes.

  • Fixed an issue where the Deadly Thorns couldn't be triggered when Belerick was protected by a shield.

Wrath of Dryad

  • Cooldown: 40-32s → 50-42s

  • Now taunts enemies hit for 1.5s instead of immobilizing them for 2s. Vines' spreading speed increased.



  • Revamped Effect: Enemies affected by Frigid Breath will have their Movement Speed gradually reduced over 3s, after which they'll be frozen for 0.5s.

  • (Removed the Attack Speed reduction effect).

Fatal Links

  • Second Attack's Damage: 360 * 120% Magic Power → 360 + 180% Magic Power


Deadly Pincers

  • Cooldown: 9-6s → 8s at All Levels

  • Damage: 150-250 + 200% Physical Defense → 120-220 + +220% Physical Defense

Electromag Rays

  • Cooldown: 11-8.5s → 10-8s

  • Damage: 100-175 + 40% Magic Power → 80-180 + 60% Magic Power

  • New Effect: Enemies hit by Johnson's Skill 2 will take 15% increased damage from the next attack (up to 45%).

  • New Effect: Damage dealt with creeps is increased by 50%.

Rapid Touchdown

  • Max Damage: 525-875 + 280% Magic Power → 450-750 + 280% Magic Power

  • Sustained Damage: 80-120 + 20% Magic Power → 60-100 + 20% Magic Power


Avatar of Guardian

  • Cooldown: 60-50s → 54-46s


Despair Stomp

  • Upon successful hits, Minotaur enhances his Basic Attacks for the next 3s, dealing extra damage.


Shield of Spirit

  • Base Damage: 125-250 → 180-255

  • Cooldown: 9-6s → 10-7s

  • Optimized the calculation of the cooldown, now Baxia will have shorter cooldowns in certain cases.



  • Base HP: 3109 → 2909

  • HP Growth: 340 → 360

Ring of Punishment

  • Base Damage: 120-270 → 100-300

  • Movement Speed Reduction: 6% at All Levels → 4%-6%


Guinevere recieves a slight adjustment to her abilities.

Super Magic

  • New Effect: Guinevere's Skill 1, 2, and enhanced basic attack inflict a mark for 4s on hit (up to 3 marks). Enemies with max marks will be knocked airborne when hit by her Ultimate.

  • Enhanced basic Attack’s HP Regen: 8% Lost HP → 80 + 8% Lost HP

  • Other Optimization: Added a range indicator to the enhanced Basic Attack.


Tiger Pace

  • Number of Weaknesses: 4 → 3

  • Weakness Damage Increase: 40% when All Weaknesses are Hit → 12% for Each Weakness Hit

  • Vision Reveal Duration: 6s → 5s

  • Damage Increase Duration: 6s → 5s

Crossbow of Tang

  • Wanwan can now cast her Ultimate while jumping.


Cloud Walker

  • Ling no longer has 15% Crit Chance from the start of the game.

  • New Effect: Ling gains double Crit Chance from all sources.

Finch Poise

  • Cooldown: 10s → 20s

  • Energy Cost: 35 → 30

  • Extra Crit Chance: 5%-17.5% → 2.5%-10% (5%-20% considering the Passive)

Defiant Sword

  • Base Damage: 230-305 → 300-400

Tempest of Blades

  • New Effect: When Ling touches a Tempest of Blades, the cooldown of his Skill 1 is reduced by 4s.


Decimation (Zhask)

  • Revamped Effect: Upon death, Zhask summons a frenzied Nightmaric Spawn on the spot, which loses HP over time until death.

  • Fixed an issue where the Nightmaric Spawn wouldn't attack enemy heroes in certain cases.

  • Optimized the targeting of Mind Eater cast by the Nightmaric Spawn.

Dominator's Descent

  • New Effect: The Nightmaric Spawn recovers HP based on the damage dealt by its Basic Attacks for the skill duration.

  • Enhanced Nightmaric Spawn's HP slightly reduced.


Mortal Coil

  • First Three Attacks' Damage: 150-200 + 70% Total Physical Attack → 150-200 + 75% Extra Physical Attack

  • Fourth Attack's Damage: 200-Ap0 + 150% Extra Physical Attack → 300-400 + 150% Extra Physical Attack


  • Base Damage: 650-850 → 800-1000



  • Base HP Regen: 150-250 → 175-250


  • Base HP Regen: 400-600 → 400-650


Moon Arrow

  • Fixed an issue where the damage didn't scale with the skill level (the issue has been fixed on the Official Server in advance).

  • Base Damage To Primary Target: 10-60 → 10-35


Alpha, Charge!

  • Skill width increased; the landing point now better matches the skill indicator.


Primal Force

  • Extra EXP: 22-50 → 15-50 (Scales with level)

  • Lifesteal: 46-60% → 32-60% (Scales with level)

Shadow Strike

  • Base Damage: 290-665 → 340-665



  • Base Physical Attack: 99 → 90

The Power of Axe

  • Base Damage: 200-600 → 150-550


Thorned Rose

  • Base Damage: 250-450 → 225-400

Weekly Free Hero and Skins

New Skins

  • Xavier and Xavier's skin "Verdict of Light" will be in a bundle and available on 22nd march. First week 30% OFF.

  • Dyrroth "V.EN.O.M. Cobra" will be available on 31st March for 899 Diamonds. First week 30% OFF. You can participate in the presale beginning 23rd March, complete the specific tasks, and request help from friends for extra discounts.

  • April Starlight Skin - Balmond "Bioroid" will be available on1st April.

  • Collector Skin - Brody "Ore-chemist" will be available on 7th April in the Grand Collection event.

  • Alpha Alpha "Onimusha Commander" is back from the revamp and will be available soon.

Fragment Shop Adjustments

23rd March adjustments (Server Time)

Premium Skin Fragment Shop

  • Will be Available: Akai "Street Enforcer"

  • Will be Unavailable: Hayabusa "Spacetime Shadow"

Rare Skin Fragment Shop

  • Will be Available: Layla "Bunny Babe", Miya "Captain Thorns", Freya "Dragon Hunter", Aldous "Red Mantle", Minsitthar "Gilded King"

  • Will be Unavailable: Lunox "Ash Blossom", Claude "Plunderous Pirate", Akai "Akazonae Samurai", Gatotkaca "Mighty Guardian", Minotaur "Sacred Hammer"

Hero Fragment Shop

  • Will be Available: Brody, Balmond, Dyrroth, Diggie, Alpha, Bane

  • Will be Unavailable: Layla, Chang'e, Angela, Karrie, Claude, Silvanna

Free Heroes

8 Free Heroes: 25th March 1st April (Server Time)

  • Yu Zhong, Hanzo, Dyrroth, Akai, Gatotkaca, Brody, Lolita, Wanwan

6 Extra Starlight Member Heroes:

  • Gloo, Khufra, Thamuz, Kimmy, Harith, Bane

8 Free Heroes: 1st April to 8th April (Server Time)

  • Luo Yi, Minotaur, Yi Sun-shin, Grock, Rafaela, Helcurt, Jawhead, Franco

6 Extra Starlight Member Heroes:

  • Argus, Brody, Sun, Khaleed, Ling, Yve

8 Free Heroes: 8th April to 15th April (Server Time)

  • Beatrix, Ruby, Diggie, Chang'e, Lunox, Aurora, Popol and Kupa, Akai

6 Extra Starlight Member Heroes:

  • Leomord, Baxia, Martis, Clint, Hilda, Guinevere

Battlefield Adjustments


  • Retribution Effect At Full Stacks: 15 Physical Attack & Magic Power → 10 Physical Attack & Magic Power + 100 HP

Bloody Retribution

  • Damage and HP Regen: 12.5% Max HP → 250 + 25% Extra HP


  • Cooldown: 90s → 75s


  • The extra Movement Speed no longer decays over time.


  • Modified the description to match the actual effect: The max Attack Speed has always been 500%

Equipment Changes

Twilight Armor

Build Path

  • Vitality Crystal + Ares Belt + Power Crystal → Vitality Crystal + Ares Belt + Leather Jerkin


  • 20% Crit Damage Reduction + 400 Max Mana → 20 Physical Defense

Unique Passive

  • Revamped: Every 2s, the next attack deals extra Magic Damage equal to 20 plus 5% of the hero's Extra HP.

Steel Legplates

  • Craft Cost: 530

  • Attribute: 45 Physical Defense

  • Component: Leather Jerkin

  • Craftable: Blade Armor, Dominance Ice

Blade Armor


  • Craft Cost: 1660 → 1960

  • New Attribute: 20% Crit Damage Reduction

Build Path

  • Leather Jerkin + Leather Jerkin + Leather Jerkin → Leather Jerkin + Leather Jerkin + Steel Legplates

Unique Passive

  • Extra Damage: 25% of the Hero's Physical Defense

Dominance Ice

Build Path

  • Black Ice Shield + Leather Jerkin → Black Ice Shield + Steel Legplates

Brute Face

Build Path

  • Ares Belt + Leather Jerkin → Ares Belt + Leather Jerkin + Leather Jerkin

Guardian Helmet

Unique Passive - Recovery

  • HP Regen Per Second (Out of Battle): 1.5%-3.5% (Increases by 0.25% for each kill/assist) → 2.5% (Fixed)

  • New Effect: Also regenerates 0.5% Max HP per second in battle.

Cursed Helmet & Molten Essence

Unique Passive - Burning Soul

  • Extra Damage Against Minions: 50% → 100%

Queen’s Wings


  • Physical Attack: 25 → 15

Unique Passive - Demonize

  • Extra Spell Vamp 25% → 35%



  • Physical Defense: 40 → 30

Haas’s Claws

Unique Attribute

  • 20% Physical Lifesteal → 25% Physical Lifesteal

Rose Gold Meteor & Magic Blades

Unique Passive - Lifeline

  • This effect is now triggered before your HP is about to drop below 30%.

Active - Conceal, Passive - Encourage, Passive - Favor, and Passive - Dire Hit

  • New Effect: The extra EXP granted by the Roaming Footwear is now doubled in the first 2 min.

Batte Experience Optimization

  • Added an Attack Assist switch to Controls - Advanced Control Mode. When it’s switched off, heroes will no longer chase enemies out of their attack range.

  • Optimized heroes’ turning speed. Heroes can now change directions faster.

  • Optimized the priority levels of Lithowanderer, Lord, and Turtle. Heroes Will no longer attack the Lithowanderer when attacking Lord or Turtle.

New Events

Ranked Mode

  • Season 23 will end on 25th March (Server Time).

  • Players who’ve reached the Master or higher rank can claim Masha “Spirited Gauntlet” as the Season Finale reward.

  • Season 24 will start on 26th March (Server Time).

Season 24 First Recharge Event

  • Recharge 20 Diamonds to claim the $24 First Recharge Avatar Border for free.

  • Recharge any amount of Diamonds to purchase the Season 24 First Recharge Exclusive Skin, Bane “Underworld Outlaw”, for only 100 Diamonds.

  • Recharge for 3 days to purchase the Name Change Card (7-Day) for only 50 Diamonds.

Delightful Vending Gifts

  • MLBB X Sanrio Characters exclusive emote, Hello Kitty “Well Done”, will be available between 22nd March to 3rd April. You can receive “Well Done” (3-Day) and “Well Done” (Permanent) once you make 15 draws and 50 draws in the Delightful Vending Surprise event. Do not miss it!

System Adjustments

  • Removed some of the unnecessary red dots and greatly reduced the number of pop-ups upon login.

  • Improved the text clarity of the home screen under High or better graphics settings.

  • Adjusted the default graphics settings on certain devices and optimized the in-match experience.

  • New Function: The Activity Record in Settings now allows you to check your recent messages that contain words marked as censored.

Bug Fixes

  • Fixed an issue where Lieh’s model was replaced by Yin Yin in certain cases.

  • Fixed an issue where the Battle Spell’s description wouldn’t disappear normally.

  • Fixed a display issue with Sun Sun’s and Lunox Lunox’s skill upgrade effects.

  • Fixed an issue where Flameshot.png Flameshot dealt no damage in certain cases.

  • Fixed an issue with the camera when Valentina Valentina turned into Aamon Aamon.

  • Fixed an issue where the privacy settings were reset after matches.

  • Fixed an issue where the Voice Listening switch was reset upon entering a lobby. Now the switch will be turned on by default.

  • Fixed the display issue on certain in-game screens.

For detailed Magic Chess updates, please refer to the Magic Chess home screen.

Players shall be facing a tough challenge with all the adjustments implemented in the MLBB patch 1.6.66 update.

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John is a mobile esports writer for AFK Gaming that specializes in Wild Rift and Mobile Legends, whilst also maintaining an overview of the Free Fire, COD Mobile and PUBG Mobile esports scenes.

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