Some classes in Lineage II have the ability to summon a servitor. In order to summon a servitor, certain items of pre-determined quantity are required. Servitors exhibit excellent abilities both as a player's partner during combat and also as a highly skilled expert hunter.

Servitors come in two types — the controlled servitor type and the uncontrolled servitor type. The controlled servitor type is useful in the sense that a summoner can directly control its actions for strategic purposes during combat. However, the disadvantage of this type is the fact that the controlled type servitor can only be summoned one at a time.

The uncontrolled servitor type is not controlled directly by the summoner. However, the advantage this type of servitor gives to a gamer is that two or more uncontrolled servitors can be summoned at the same time.

Among the currently existing servitors, the uncontrolled servitors that cannot be directly controlled are the cubic type servitors. And, controlled type servitors are attack wizards (first class transfer) and summon wizards (second class transfer) of the servitor class.

All servitors that appear in Lineage II consume crystals. Each time one level of an applicable summon skill is mastered, the number of crystals required to summon a servitor will increase.

The total amount of crystals required for summoning will not be used upfront. Only some portion is consumed at this time; as time passes, more of the crystals will be used, so that the total number of crystals will be used by the end of a complete summoning.
 

A servitor can be summoned by a PC of the attack wizard class who has completed the first class transfer or a PC of the 2nd summon wizard class who has completed the second class transfer by using a summon skill. Since these servitors consume crystals, they exhibit a high degree of effectiveness during the time period they are available for service.

A servitor will stay in the game for at least 20 minutes from the time it was summoned. After the 20 minute stay is up, it will automatically disappear. The time when a servitor is set to disappear can be looked up from the servitor’s Status Window.

• Strictly speaking, PCs of the attack wizard class who have completed the first class transfer cannot be considered belonging to the summon type class. Also, when a servitor is summoned by a low level PC, the servitor tends to have superior effectiveness. Therefore, we placed a limit on the time when one can re-summon a servitor again after summoning it.
• If a PC acquires a summoning skill while the PC’s level is under 40, after summoning a servitor, the PC cannot summon the same servitor for six hours.
• When a PC has completed the 2nd class transfer and the PC’s level is 40 or above, the re-use delay of a summon skill is very short (different for different skills). These skills can be obtained only when a PC transfers to the summon type class during one’s 2nd class transfer. The characters that choose to transfer to the attack wizard class during their 2nd class transfer will not be able to obtain this type of summoning skill.

Human Wizard
Kat the Cat	Mew the Cat
Elven Wizard
Unicorn Boxer	Unicorn Mirage
Dark Wizard
Shadow	Silhouette
Artisan
Mechanical Golem
Warsmith
Siege Golem	Big Boom	Wild Hog Cannon
Necromancer
Corrupted Man	Reanimated Man
Elemental Summoner
Unicorn Merrow
Warlock
Kai the Cat
Phantom Summoner
Soulless
Dark Avenger
Dark Panther

The uncontrolled servitors are known as cubics. They can be summoned by Temple Knights, Shillien Knights, Warlocks, Elemental Summoners, and Phantom Summoners.

A cubic provides assistance directly or indirectly during a player's hunt. In order to summon it, a certain number of crystals and a particular skill are required. These cubics provide a new element of fun to players in the Lineage II world.

A cubic is a type of summoned creature that carries out assigned tasks faithfully.

In hunting activities, cubics assist in attacks, both directly and indirectly.

• Aqua Cubic: Blasts its target with cold air, dealing continuous damage.
• Binding Cubic: Launches a paralysis attack.
• Life Cubic: Restores its owner's HP by using Heal.
• Phantom Cubic: Weakens the enemy's P. Atk., P. Def., and Atk. Spd.
• Spark Cubic: Stuns its target.
• Storm Cubic: Attacks by imitating its master.
• Vampiric Cubic: Absorbs the enemy's HP and thereby restores its master's HP.
• Viper Cubic: Poisons its enemy to reduce its HP.

• No separate command window exists. According to one's assigned role, a cubic carries out tasks using its master's intelligence.
• Along with a cubic, a separate summon or a pet may be called.
• A cubic cannot perform targeting, nor is it impacted by any type of attack. However, it can be forcefully dispersed by dispel magic.