Disgaea: Hour of Darkness Tips

Powerful Clerics
Create a cleric (females have slightly better stats) and give her a mage pupil. If they stand next to each other, the cleric can use her pupil's spells, and after a while she'll be able to use them by herself. Give her the best staff and your best intelligence boosting items, and you'll be able to smash through anyone. Her range is fantastic, too, once you've begun to master the staff.