Chains are easy to build up when you are in Vanguard III, near Norton's Hideout. Let's say you are standing near the door of the castle in the Ruins and you travel down two times and you reach a place with a broken bridge, and an item across the bridge - a Nobleman wanders round that area.

1. Fight this Nobleman.
2. Exit this area.
3. Enter this area.
4. Repeat steps.

Because of the fact that there is only one Nobleman, the fights will be easy, seeing how Noblemen can only trip and cannot damage you. This can also help in training as there are two trophies associated with Norton.[If you fight Norton with the Bonus of Exp x 300%, Cliff will level up after you defeat Norton. =3] After you can finish the Nobleman with one blow or get bored, go up one area, where another Nobleman wanders. This one comes along with a Scumbag.

1. Defeat these two.
2. Go up to the castle area.
3. In this area, there are two Noblemen each with a Scumbag - defeat them.
4. Go down and repeat the steps.
Saying that you have Exp x 300% - you can earn 6 Exp per battle. =3 Go for the Chain of 500 here if you wish!