A DM I know says that is very balanced to take away the 2 spells a wizard would get in every lvl... Wizard spells can be strong but still... the rule make the druid and cleric to the best casters? (even a sorcere is nearly better
) or what?
I dont really know but this sounds a kind of unfair? I dont have much experience about DnD...

I dont really know but this sounds a kind of unfair? I dont have much experience about DnD...