I seriously hate older games for not telling me what the hell all these abilities and spells I have do. It makes battling an exercise in experimentation, I can never remember what spells do what after I've used them (or figure it out from the shorthand descriptions) and just end up only using a handful of spells because of this limitation. I also hate not being able to compare stats of stuff from shops, meaning I end up buying things without knowing whether or not it's a waste of my time.

What gaming conventions do you thank goodness have since been added since the archaic times of pre-3Ds? Also bonus points to anyone who knows which RPG I reference in the topic title.