As your intelligence raises, the number of spells you can memorize, will also increase. As a wizard, you can also become an expert in certain spells, so you won't have to memorize that spell to be able to cast it every day. Cleric This is a priest that dedicates his life to a certain god. By praying for that god every day, the priest is granted extra spells. Their faith will also determine what kind of armor they can wear and weapons they can use.
Clerics can also turn undead and control the undead.
Every cleric has a core spell list plus access to 2 spell domains. If you find that some spells seem far too powerful as given, but you don't have time to adjust the range, duration, area of effect, material components and the spell effects as carefully as you would like, you might consider just increasing the level of the spell, to be more in accord with spells of similar power. Similarly, you may want to reduce the level of other spells. Don't let your players talk you into introducing a spell at too low a level. Abilities Classes Weapons Armor Feats.