Experience Chain

Experience Chain
 This term is used to describe the aquisition of an increased number of experience points (EXP or XP) from a monster's death due to the quickness in which the monsters, in a row, were killed.

Experience chains can be as low as a Chain #1 to as high as the Party can quickly kill monsters. This kind of killing can be achieved through two different methods: 

Speedkill
 Speedkilling is the fine art of fighting monsters, or mobs as they are commonly referred to, which are of a "Tough" or "Very tough" nature (seen by using the check command), which also roughly translates into 4 to 7 levels above your highest leveled party member. This type of EXP'ing is considered only useful in the higher levels (67-75), as an insane amount of focus and skill is required to completely eliminate downtime (resting for MP regeneration). Using this method, parties have been known to reach experience point chains of up to 300 on one occasion, in the Sea area. Sky and King Ranperre's Tomb are also excellent areas, with the right party type, in which Speedkill is a great way to earn Experience Chains. 

Grinding
 Grinding is the common term for normal EXP'ing. In this method, with a good party type in the right area, a party can reach chains of usually about #5 before having to restart. This is in an optimal situation, where mobs are plentiful and the area isn't too camped. If mobs are scarce and/or the area is heavily camped, it would be advisable to seek another place to EXP, as the Experience Chain number and the EXP/hour would be less than sufficient for a good EXP Party. 

 Nominally, an EXP Party should look for at least 3-4k/hour. Anything below that should indicate that you should:  Change Party style (too many mages, not enough melees, etc.) Change area of EXP (too camped, wrong party style for the area, etc.) or Change style of partying (instead of Grinding, perhaps try Speedkill, or vice versa)  Anything above 3-4k/hour can be seen as an exceptionally good party, and the extra EXP can be your reward for setting up/actively participating in a Party that knows what it's doing.