Skills are a battle mechanic in Xenoblade Chronicles X. They are unlocked by reaching certain Class Ranks in certain Classes, and can be leveled up by spending Battle Points. During battles several buff and debuff effects occur depending on the selected Skills.

Some classes have different amounts of skill slots available to assign a skill. Drifter has 5 skill slots. Generally, level 2 classes have 2 skill slots, level 3 classes have 3 skill slots, and level 4 classes have 4 skill slots. The exceptions to this rule are Striker, Samurai Gunner, and Duelist, which all have 1 less skill slot than standard for their level. Different skills are obtained by increasing a character's class rank, with the exception of the Drifter which has no skills of its own. Although skills are obtained in a certain class, they can be assigned regardless of the class the character is in.

List of Skills

Name Class Class Rank Users Maximum Effect
Steel Flesh Striker 2 Cross, Lin, L, Nagi, Alexa, H.B. Maximum HP boosted by 30%
Unwavering Courage Striker 3 Cross, Gwin, Frye Melee accuracy boosted by 20%
Flame Trigger Striker 5 Cross, Gwin Damage from Blaze boosted by 20%
Mighty Muscle Striker 7 Cross, Lin, Gwin, L, Frye, Nagi, H.B. Melee attack boosted by 30%
Combat Presence Striker 9 Cross, H.B. Extends Taunt effects by 18 seconds
Dismantler Striker 10 Cross, Lin Melee art damage to appendages boosted by 150%, (45% chance)
CQC Master Samurai Gunner 2 Cross Triggering melee combos boosts critical chance by 50%
Auto Melee Boost Samurai Gunner 3 Cross, Gwin Melee auto-attacks damage boosted by 50%.
Iron Knuckle Samurai Gunner 4 Cross, Frye Damage from Physical attacks boosted by 50%
Healing Aura Samurai Gunner 5 Cross, Gwin Aura recovers HP by 20% when activated
Weapon Guard Samurai Gunner 6 Cross, Gwin, Frye Wielding a melee weapon adds 20 resistance to Physical damage
Blazing Auto Samurai Gunner 7 Cross, Frye Melee auto-attacks have a 18% chance of inflicting Blaze I
Theroid Slayer Samurai Gunner 9 Cross, Gwin Damage dealt to Theroid enemies boosted by 50%
Yamato Spirit Samurai Gunner 10 Cross, Nagi Gain 60 TP when using melee arts, or double if an aura is active
Conflagrant Edge Duelist 2 Cross, Gwin Damage from Thermal attacks boosted by 50%
Aggro Boost Duelist 3 Cross Damage dealt to enemies inflicted with Taunt boosted by 100%
Fortified Flesh Duelist 5 Cross, Nagi, Alexa Maximum HP boosted by 50%
Grand Procession Duelist 7 Cross, Nagi Overdrive activation gives all party members 500 TP
Thermal Shield Shield Trooper 2 Cross Wielding a melee weapon adds 20 resistance to Thermal damage
Topple Topper Shield Trooper 3 Cross, H.B. Enemy resistance to Topple reduced by 30%
Shield Screen Shield Trooper 4 Cross, Lin, L, H.B. Wielding a Shield reduces damage taken by 30%
Rising Renewal Shield Trooper 5 Cross, Frye, Nagi Recovers HP by 30% more when revived
Long Topple Shield Trooper 6 Cross, Lin, L, H.B. Extends Topple duration by 5 seconds
Trauma Tension Shield Trooper 8 Cross, Frye, Nagi, H.B. Gain 150 TP when taking damage, (15% chance)
Dirty Fighter Shield Trooper 9 Cross, Lin Melee art damage dealt to enemies inflicted with Topple boosted by 100%
Stand Strong Shield Trooper 10 Cross, Lin, L Wielding a Shield adds 100 resistance to Stagger, Topple, Knockback, and Launch
Machine Gunner Bastion Warrior 2 Cross, Lin, Frye, Nagi Ranged damage boosted by 100% while in battle against two or more enemies.
Heatseeker Bastion Warrior 5 Cross Critical chance boosted by 90% when attacking enemies inflicted with Blaze
Double Spike Bastion Warrior 9 Cross, H.B. Aura spike damage boosted by 100%
Double Reflect Bastion Warrior 10 Cross, L Aura reflect damage boosted by 100%
Agile Gunslinger Commando 2 Cross, Elma, Phog, Murderess Wielding a ranged weapon boosts Evasion by 20%
Steady Hand Commando 3 Cross, Elma, Phog, Celica Ranged accuracy boosted by 20%
Boosted Bullets Commando 4 Cross, Murderess Ranged attack boosted by 30%
Background Noise Commando 5 Cross, Elma, Phog Melee art damage dealt from behind an enemy boosted by 125%
Combo Gunner Commando 7 Cross Triggering ranged combos boosts damage by 125%
Third Eye Commando 8 Cross Gain 60 TP when using ranged arts, or double if an aura is active
Master Edge Commando 9 Cross, Elma, Phog, Bozé Wielding a melee weapon boosts critical chance by 9%
Aura Burst Commando 10 Cross, Celica Aura extended by 8 seconds
Deep Fang Winged Viper 2 Cross Enemy resistance to debuffs reduced by 30% when attacking from the side.
Mortal Enemy Winged Viper 3 Cross, Elma, Phog Damage dealt to Humanoid enemies boosted by 50%
Trigger Happy Winged Viper 5 Cross, Murderess Triggering ranged combos reduces art cooldown time by 50%
Lifeline Winged Viper 7 Cross, Murderess Aura recovers your HP by 30% when activated, if HP is below 50%
Mindscape Winged Viper 9 Cross, Celica Maximum TP increased by 1500
Hellhound Winged Viper 10 Cross, Elma, Phog, Murderess Overdrive extended by 10 seconds
Night Vision Full Metal Jaguar 2 Cross Damage dealt during the nighttime boosted by 100%
Zero Lapse Full Metal Jaguar 3 Cross Melee auto-attacks have their cooldown duartion reduced by 50%.
Red Zone Full Metal Jaguar 5 Cross, Celica Overdrive boosts critical chance by 40%
Crisis Catalyst Full Metal Jaguar 7 Cross, Elma, Phog Critical chance boosted by 30% when HP is 50% or less. Effect doubles when HP is 25% or less.
Blood Carnival Full Metal Jaguar 9 Cross Melee auto-attacks recover HP by 12% of the damage dealt, (25% chance)
Phantom Counter Full Metal Jaguar 10 Cross, Elma, Phog Overdrive activation adds 12 to Overdrive count
Killshot Partisan Eagle 2 Cross, Lao, Bozé Ranged auto-attacks have their critical chance boosted by 10%
Electric Guard Partisan Eagle 3 Cross, Bozé Wielding a melee weapon adds 20 resistance to Electric damage
Electric Boost Partisan Eagle 5 Cross, Lao, Alexa, Bozé Damage from Electric attacks boosted by 50%
Knock 'n' Shock Partisan Eagle 7 Cross, Lao, Bozé Melee arts have an 18% chance of inflicting Shock I.
Fleet Feet Partisan Eagle 9 Cross, Celica Wielding a melee weapon boosts evasion by 30%
Piscinoid Slayer Partisan Eagle 10 Cross, Lao Damage dealt to Piscinoid enemies boosted by 50%
Long Shot Astral Crusader 2 Cross, Lao Increases firing range of ranged attacks by 25m
Unstoppable Astral Crusader 3 Cross Sprinting adds 100 resistance to Topple, Stagger, Knockback, and Launch
Quick Reload Astral Crusader 5 Cross, Lao, Alexa, Bozé Ranged auto-attacks have their cooldown reduced by 50%
Conductive Strike Astral Crusader 7 Cross, Lao, Bozé Damage dealt with electric attacks to enemies inflicted with Shock boosted by 300%
Electric Flesh Astral Crusader 9 Cross When taking damage, 30% chance to inflict electrical spike damage
TP Overdrive Astral Crusader 10 Cross, Lao, Hope, Alexa, Bozé Gain 150 TP when using Arts during Overdrive
Inner Search Enforcer 2 Cross, Irina, Doug, Hope, Celica, Mia, Yelv Potential boosted by 20%
Beam Boost Enforcer 4 Cross, Doug, Mia, Yelv Damage from Beam attacks boosted by 50%
Beam Guard Enforcer 6 Cross Wielding a ranged weapon adds 20 resistance to Beam damage
Buff Heal Enforcer 8 Cross, Hope Restores 500 HP when receiving a buff.
Healing Touch Enforcer 9 Cross, Irina Allies recover 50% more HP when revived.
High Tension Enforcer 10 Cross, Irina, Doug, Murderess, Alexa, Yelv Maximum TP increased by 1500
Beauty Sleep Psycorruptor 2 Cross, Irina, Mia Extends Sleep duration by 18 seconds
Brain Wall Psycorruptor 3 Cross Aura adds 100 resistance to Sleep, Control and Slow Arts
Gentle Approach Psycorruptor 4 Cross, Celica Sleeping enemies hit with auto-attacks have a 100% chance of not waking up
King's Decree Psycorruptor 5 Cross, Irina, Hope Enemy resistance to Control reduced by 30% and raises debuff tier
Extra Armor Psycorruptor 6 Cross, Mia Barrier absorbs 15% more damage
Feather Touch Psycorruptor 8 Cross, Irina, Celica Sleeping enemies hit with arts have a 100% chance of not waking up
Unpleasant Dream Psycorruptor 9 Cross, Irina Damage dealt to enemies inflicted with Sleep boosted by 150%
Core Crusher Psycorruptor 10 Cross Damage dealt with attacks boosted by 150%, at the cost of appendage damage from Ether attacks being nulified
Ether Guard Mastermind 1 Cross Wielding a ranged weapon adds 20 resistance to Ether damage
Gravity Boost Mastermind 3 Cross, Mia Damage from Gravity attacks boosted by 50%
Well-Weathered Mastermind 4 Cross, Hope Gain 300 TP when taking weather damage.
Appendage Erosion Mastermind 5 Cross Damage dealt to appendages boosted by 50% per debuff on the enemy
Resistant Flesh Mastermind 6 Cross, Mia Resistance to debuffs boosted by 24%
Tactical Analyst Mastermind 7 Cross, Mia Enemy resistance to all debuffs reduced by 24%
King's Boon Mastermind 9 Cross, Irina Enemies inflicted with Control gain All Stats Up V - Melee Attack Up, Ranged Attack Up, Melee Accuracy Up, Ranged Accuracy Up, Potential Up, Evasion Up.
Secondary Accelerator Mastermind 10 Cross, Yelv Arts secondary cooldown reduced by 50%
Ether Boost Blast Fencer 1 Cross, Mia Damage from Ether attacks boosted by 50%
Mechanoid Slayer Blast Fencer 3 Cross, Doug, L, Hope, Murderess, Yelv Damage dealt to Mechanoid enemies boosted by 50%
Knight's Soul Blast Fencer 5 Cross, Doug, L, Hope, Yelv Maximum TP increased by 1500
Aura Assault Blast Fencer 7 Cross, Doug, Murderess Damage dealt while an Aura is active boosted by 30%
Buff Extender Blast Fencer 9 Cross Extends Buff duration by 10 seconds
Supreme Sword Blast Fencer 10 Cross, Doug, Hope, Sword Triggering melee combos boosts damage dealt during the combo by 100%
Gravity Guard Galactic Knight 2 Cross Wielding a ranged weapon adds 20 resistance to Gravity damage
Fast Forward Galactic Knight 5 Cross Triggering melee combos reduces cooldown duration during the combo by 50%
Stellar Entry Galactic Knight 9 Cross, Doug, Alexa Gain 2000 GP when boarding a Skell during Overdrive.
Synchrony Galactic Knight 10 Cross, Alexa, Yelv Skell Melee Attack, Ranged Attack, Melee Accuracy, Ranged Accuracy, Evasion, and Potential boosted by 12%