Source: http://tos.nexon.com/community/dev/view.aspx?n4ArticleSN=39
Falconer (Circle 3)
Falconer, which controls a Hawk companion, will receive further changes in Circle 3.
An attribute will be added to Circling that lets it duplicate attacks within the affected area at a chance of 5% per skill level. This will be a very important skill for Archers, who tend to be weak against multiple enemies.
A new skill “Aiming” will increase the effective hitbox of enemies around the hawk, allowing you to attack from even further away. Because this skill can be combined with other skills like Circling, it will be very helpful when partying with melee classes.
“Pre-emptive Strike” allows your hawk to automatically participate in battle even without you commanding it to. Skills that will automatically be used are Hovering and Sonic Strike. In this case, these skills will take on the respective skill levels learned by the Falconer. Skills used automatically by the Hawk will not use SP or trigger cooldowns.
Schwarzer Reiter (Circle 3)
A mounted combatant focusing on mobility.
A new attribute will be added to Caracole, the skill that lets you both attack and escape at the same time. This attribute will allow the skill to hit even more targets at once. For the black warriors (?) who have more confidence in their endurance, try using the new attribute that shortens Caracole’s escape distance to follow up with consecutive attacks.
A new splash attribute has been added to Limacon that allows it to attack two targets at once. Moreover, with the next patch, Limacon will be changed to a buff. After using Limacon, press “C” within the duration of the buff to enable you to use other skills (?)
As the peak of Circle 3, “Advancing Fire” lets you make use of the long range weapons in both your hands to unleash volleys upon enemies in front of you while moving. It differs from Retreat Shot because you can remain still while firing, giving you incredible destructive power.
Musketeer (Circle 2)
Musketeer, the long-range attack specialist, becomes even stronger with Circle 2.
A new splash attribute has been added to Snipe, allowing you to attack two targets at once.
A new skill “Bird Pole” (?) will do tremendous damage to flying targets. In PvP, the skill will cancel the flying status, and so can be very powerful.
Furthermore, a rapid fire attribute has been added to Penetration Shot, making it very usable in mobby combat situations.
Cannoneer (Circle 2)
Cannoneer, who wields a destructive cannon, will have her teamplay roles emphasised in Circle 2.
An attribute has been added to Siege Burst that allows it to destroy magic circles.
“Cannon Barrage” (?) will fire consecutive direct attacks at enemies in front of you.
“Bazooka” is a new skill like Kneeling Shot that will allow you to do damage against multiple enemies in a wide area. However, please be careful when using this skill, since in this stance you cannot move, and cannot target the few enemies close to you.
Hackapell (Circle 1)
This is a new mounted class to be revealed with Rank 8.
Hackapell’s biggest characteristic is its ability to wield a one-handed sword as an auxillary weapon, allowing it to deliver melee attacks to nearby enemies despite being an archer. Like Schwarzer Reither, it will make use of an attribute that allows it to mount companions.
If there is any difference between the two classes, Hackapell is able to dash while mounted when the direction key is tapped twice. However, the dash speed is slower than the regular mounted speed of Cataphract, and is about the same as Swordsman’s dash speed. Stamina will also be continually consumed.
Archer classes typically reduce the enemy’s defence by 10% for each arrow fired into them, effective to a maximum of 5 arrows. The short-range skill “seukal pugeunin” (?) will increase the number of consecutive strikes according to the number of arrows fired. Using this skill right after unleashing long-range arrow attacks will give you a huge damage bonus.
In addition, Hackapell will have other abilities such as reducing enemies’ critical resistance and a stance that allows you to fire up to 7 arrows at enemies (?) By the nature of these skills, we recommend this class to people who enjoy cooperative play.
Mergen (Circle 1)
Mergen is a new class to be revealed with Rank 8, and is especially strong at combat versus multiple enemies.
“Spread Shot” is an AOE skill that fires 5 arrows at once. Like regular attacks, this skill may be used while moving after acquiring a target.
“Parfian Shaft” (?) is a skill that lets you fire penetrative shots behind you without suffering speed loss. It will be very useful when fighting against enemies with high mobility.
“Triple Arrows”, which the developers believe will become the pet skill among players of this class.
“Homing Arrow” will, without a target, automatically fly towards nearby enemies. We recommend using this skill as a pre-emptive strike on enemies. Because the 5 arrows can hit either the enemies in front of you or all fly towards the same target, this skill is suitable for both concentrated fire and AOE offense.