I didn't use any on my first play-through on 'normal' with the exception of some healing pots. I was totally expecting to use them on my second play-through on tactician but didn't need them on that run either frown I don't think it makes the game more fun if you can win without them. I think the game becomes more fun if you actually need them and use the right ones at the right time to turn the tides of the fight.