| Description | Magic Lvl | 
|---|---|
Backstab Lvl. 1  Supplements P. Atk. with 1107 Power to strike the enemy's unprotected back. Available when equipped with a dagger or a dual dagger. Over-hit, critical hit and half-kill are possible.  | 38 | 
Backstab Lvl. 2  Supplements P. Atk. with 1176 Power to strike the enemy's unprotected back. Available when equipped with a dagger or a dual dagger. Over-hit, critical hit and half-kill are possible.  | 39 | 
Backstab Lvl. 3  Supplements P. Atk. with 1249 Power to strike the enemy's unprotected back. Available when equipped with a dagger or a dual dagger. Over-hit, critical hit and half-kill are possible.  | 40 | 
Confusion Lvl. 5  Throws the enemy into confusion, changing their target of attack.  | 40 | 
Critical Damage Lvl. 3  Increases Critical Damages by 93.  | 40 | 
Dagger Mastery Lvl. 9  Increases P. Atk. by 20.3 when using a dagger. Increases expertise in using a dagger, making it possible to use a dagger more skillfully.  | 38 | 
Dagger Mastery Lvl. 10  Increases P. Atk. by 21.8 when using a dagger. Increases expertise in using a dagger, making it possible to use a dagger more skillfully.  | 39 | 
Dagger Mastery Lvl. 11  Increases P. Atk. by 23.4 when using a dagger. Increases expertise in using a dagger, making it possible to use a dagger more skillfully.  | 40 | 
Deadly Blow Lvl. 1  Attacks the target's vital spot with 1107 Power added to P. Atk. Requires a dagger. Over-hit and Half-kill are possible.  | 38 | 
Deadly Blow Lvl. 2  Attacks the target's vital spot with 1176 Power added to P. Atk. Requires a dagger. Over-hit and Half-kill are possible.  | 39 | 
Deadly Blow Lvl. 3  Attacks the target's vital spot with 1249 Power added to P. Atk. Requires a dagger. Over-hit and Half-kill are possible.  | 40 | 
Drain Health Lvl. 17  Inflicts dark damage on the target with 49 Power added to M. Atk. Absorbs 20% of the damage inflicted on target as HP.  | 38 | 
Drain Health Lvl. 18  Inflicts dark damage on the target with 50 Power added to M. Atk. Absorbs 20% of the damage inflicted on target as HP.  | 39 | 
Drain Health Lvl. 19  Inflicts dark damage on the target with 52 Power added to M. Atk. Absorbs 20% of the damage inflicted on target as HP.  | 40 | 
Freezing Strike Lvl. 3  Temporarily freezes the surrounding air, inflicting Water damage on the enemy with 30 Power and decreasing their Speed by 20% for 1 minute.  | 38 | 
Freezing Strike Lvl. 4  Temporarily freezes the surrounding air, inflicting Water damage on the enemy with 31 Power and decreasing their Speed by 20% for 1 minute.  | 40 | 
Hex Lvl. 1  Decreases the enemy's P.Def. by 23% for 30 seconds.  | 40 | 
Light Armor Mastery Lvl. 11  Increases P.Def. by 15.7 and Evasion by 7, and decreases the chance of receiving Critical Damage by 25% when equipped with light armor.  | 38 | 
Light Armor Mastery Lvl. 12  Increases P.Def. by 16.7 and Evasion by 7, and decreases the chance of receiving Critical Damage by 25% when equipped with light armor.  | 39 | 
Light Armor Mastery Lvl. 13  Increases P.Def. by 17.8 and Evasion by 7, and decreases the chance of receiving Critical Damage by 25% when equipped with light armor.  | 40 | 
Power Break Lvl. 3  Decreases the enemy's P. Atk. by 23% for 30 seconds.  | 40 | 
Silent Move Lvl. 1  Disables preemptive attacks from enemies. Decreases Speed by 40% and Increases resistance to Fire, Water, Wind and Earth attacks by 15%. Continuously consumes MP.  | 40 | 
Sting Lvl. 13  Attacks the enemy with 246 Power added to P. Atk., decreases the enemy's Speed by 20% and inflicts Bleed causing loss of 35 HP per second for 20 seconds. Requires a sword, dagger, dualsword, or dual-dagger.  | 38 | 
Sting Lvl. 14  Attacks the enemy with 262 Power added to P. Atk., decreases the enemy's Speed by 20% and inflicts Bleed causing loss of 35 HP per second for 20 seconds. Requires a sword, dagger, dualsword, or dual-dagger.  | 39 | 
Sting Lvl. 15  Attacks the enemy with 278 Power added to P. Atk., decreases the enemy's Speed by 20% and inflicts Bleed causing loss of 45 HP per second for 20 seconds. Requires a sword, dagger, dualsword, or dual-dagger.  | 40 | 
Unlock Lvl. 6  There is a 100% chance to open a level 1 door, a 75% chance to open a level 2 door, and 90% chance to open a level 40 treasure chest. Requires 5 Thief Keys.  | 40 | 
Vicious Stance Lvl. 6  Increases Critical Damages by 139. Additionally increased Critical Damage by 3%. Continuously consumes MP proportionately to the user's level.  | 40 |