I'm mainly asking this for Disgaea: Afternoon of Darkness, given I have enough Mana to reincarnate a character into 4 different types of Mages (Green, Blue, Red, Star), a Cleric and then a Warrior, would the Warrior have all the spells learned from the previous classes?
Disgaea – Does Reincarnation Allow Skills to Be Passed into Other Classes?
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Best Answer
Yes, spells are kept after reincarnating (it may be that you need to have some minimum of skill experience on the spell to keep it), but they lose a certain amount of skill experience. So you can get any spell on any class, which is also the only way to get the Tera spells on Prism/Galaxy Mages/Skulls.
The skill experience lost depends on how much mana you spend reincarnating, a Genius reincarnation will only lose 5%. As the character will lose any excess mana they still have after reincarnating you should use the best one you can afford.