Disgaea: Hour of Darkness Tips

Easy Weapon mastery
This takes a lot of time to prepare for if you are just starting out. You will need up to 1900 armasters, and a two people with a lot of counter(Majin is the best choice). Just equip the weapon you want with all the armasters on the Person and have them on a stage with invincibility and constantly attack with them. You will see a great increase in weapon mastery kinda quickly. As for magicians, best choice is Midboss's first stage on the +1 attack and have them heal or decrease an ally or enemy(this takes a whole lot longer but worth it if you want to use a staff with Flonne