Dungeon Fighter Online/Priest

Quite possibly one of the burliest Priests you'll ever see, he specializes in heavy weapon melee combat using. The priest also possesses an assortment of heal and buff skills.

Priests are a brawling-type class, preferring to mostly use their fists, and occasionally huge weapons to deal damage to enemies. These include giant crosses, rosaries, totem poles, and axes. They also can choose from a basic healing spell and a couple of other ability increasing spells.

Promoted priests can take several forms. Crusaders are the only support class of priest, and have a large variety of buff spells and healing spells to support their teammates. There are two types of Crusader: battle and support. Monks are close-range brawlers, preferring to slam their weapon into the ground, which forms an area where the Monk's stats are increased, and rely solely on their fists to batter their enemies. Exorcists can choose to be either magic casters or physical types, specializing in the use of their weapons and/or friendly spirits. Finally, Avengers (currently not available in North America) transform their bodies into demons, making them physically stronger at the cost of reducing speed. However if you are capable purchase some items he will gain some speed in order making him deadly as any normal demon.

Skills
Crusader Monk Exorcist Avenger
 * Slow Heal
 * Strike
 * Wisdom Blessing
 * Cure
 * Lucky Straight Punch
 * Smasher
 * Second Uppercut
 * Giant Weapon Launcher
 * Phoenix Hammer
 * Cancel-Giant Weapon Launcher
 * Furios Grab
 * Painful Rapture

Levels

 * 1–4: Do the quest given to you by the bishop, the girl, and her uncle. You should be level 3–4 by now.
 * 5–8: Take up the second and third epic quest story lines. Do the first two quests of the third one, then complete the second story line quests, with one or two party members.
 * 9–12: Thunder, Poison Thunder, and above, with 1 party member. 2–3 party members for expert and master modes.

Crusader
Blessed with holy powers by the gods, the Crusader uses heavenly abilities to provide support to its peers and defeat evil with divine powers. Wearing a plate armor and having a strong stature, he's a "wall on legs", having the greatest defense and HP possible of all classes/subclasses. His weapon of choice is a cross, a decent attack speed weapon which gives him even more defense while raising his stats. He's more PvE oriented, but still can be great in PvP. This subclass branch of the Priest is rather hard to play in early levels, but is amazingly rewarding to both the Crusader and his party members later on in the game.

In its early levels, the crusader has the choice to specialise into two branches of skills : defensive (supporter) or offensive. Due to the number of SP available and the high cost of specialisation, a hybrid build is harder to achieve.

Chosing to specialise in a Defensive (Support) Crusader gives you very interesting and powerful buffs at the cost of constantly needing to follow parties due to lack of strength and good magic attacks, although it is not impossible to solo with his many buffs in early levels. His weapon is more likely to break before the end of the dungeon because of his damage output that is quite low. Not to worry though, the lack of strength to solo dungeons later in game is compensated by the constant need to have one in parties to survive tough situations, since he doubles the effectiveness of a party and it almost completely assure it's survivability!

Chosing to specialise in an Offensive (Battle) Crusader gives him a few slow but very powerful magical light spells that keeps enemies away from the Crusader with phasing/paralysing/pushing/blinding/stunning/regrouping effects. His buff spells will be more oriented toward making him stronger than helping others (if he has any). Although he's more efficient in a party in the attacking part than his supporter cousin, he'll mostly prefer to go solo in dungeons since he's more likely to have better control over his enemies when they're not pushed around/distracted by other party members. He can still be a nice addition to parties by limiting his enemies' movement and regrouping them. Due to the Crusader's low MP, the slow MP regeneration, and the high skill cost, this Crusader build uses an enormous amount of MP potions, requiring him to gain a LOT of money to be able to keep casting his powerful spells.

The Crusader can be identified by the cross aura shining behind him.

Monk
They master the art of attacking with bare fists, leaving their weapon and traditional Priest ways behind to concentrate in one on one close combat techniques. Monks are the quickest attackers of the Priest subclasses (and one of the fastest character overall), but also one of the hardest subclass to master in Dungeon Fighter Online, requiring a technical player with great reflexes that can keep up with his short skill cooldowns and fast pace combo action.

Relying entirely on their fists and body movement for attacking, they rather wear light armor (giving them less defense, but more agility) and slam down their weapon on the ground to make themselves lighter, increasing movement and attack speed. Furthermore, the slammed weapon releases an aura that gives beneficial effects to both the Monk and his party members who steps in its range. They can use any weapon as every weapon have a very nice addition to attacks.

While being one of the best choice of subclass for PvP (due to their speed and juggling ability), they are somewhat not as adept in PvE. Not only they lack skills giving them Super Armor, but they may also have a really hard time against enemies having Super Armor (being immune to grabing and flinching). Fortunately, their movement skills such as Duck and Sway gives them plenty of opportunities to dodge any attacks.

The Monk can be identified by blue flames on his fists.

Exorcist
Chosing to serve as a warrior to purify the world of evil, the Exorcist is a pure offensive class using tools like amulets, magical symbols, incantations, and his oversized weapon to defeat his enemies. Thanks to his wide range attacks, he is known for his ability to control a crowd, making him a good dependable character who can also solo dungeons with ease.

While he attacks rather slowly, his normal attacks as well as all of his physical attack skills now relies entirely on his weapon (no more fist attacks), giving the Exorcist a very wide coverage both in the x and y axis. Because of this, Exorcists can be quite intimidating to some PvPers, not really knowing the way around their attacks.

There's two branches of Exorcist, although hybrid build is possible and quite effective.

The Magical Exorcist wears cloth armor and a rosary in most case, giving him magic bonuses such as power, speed, and MP recovery. Since he's more vulnerable physically, he attacks his enemies from a distance. His magical attacks are both powerful and covers wide areas. He also has useful magic that helps enemies gather in group, such as area slow down. His main buff gives him more magic power and adds water attribute to his weapon. Being a very active magic user, he needs a decent amount MP potions to keep him going, meaning he also needs to gain a decent amount of money.

The Physical Exorcist, like the Crusader, wears plate armor, giving him strength, HP, and attack speed bonuses. He can also wield an axe or a scythe, depending of his desire to be more effective in PvE or PvP respectively. Almost all of his physical skills and attacks have now the super armor effect, making his combos very hard to be interrupted. Furthermore, he also has the ability to recharge some of his attacks to maximize the damage inflicted. His main buff gives him strength and adds fire attribute to his weapon. In overall, his very high defense, long reach, high power, and the rather cheap MP cost of his skills makes the physical exorcist one of the easiest sub-class to play in DFO.

The Exorcist is identified by the fire spirit floating behind him.

Avenger

 * This class has been released on Dungeon Fighter Online: August 16, 2012. Update me.