Food
Any buffs would have to be REALLY good to be worth taking a debuff for. Otherwise people will just do what I'm doing now, which is ignoring the food in favor of other methods. Any debuffs would have to not cancel out the benefit (A +5 STR / -5 CON food for a frontline warrior is bad, a +5 STR / -5 INT food is good)
My idea for food is to have it heal a bit each turn, to make the strategic choice between a potion for a large chunk of instant healing or a small amount each turn for several turns. It also probably needs a stat buff as well because you get a lot more attribute points than in D:OS 1 - keeping the same values for food makes them worse in comparison.
Potions
The problem with cure poison potions is the exact same problem with cure poison potions in basically every single RPG: The enemy can usually re-poison you effortlessly, making the potion a waste of an action. Cure Poison should not only cure, but give you a 3 turn immunity to poison.
Scrolls
I don't think Scrolls need any more changes. The addition of Memory and being unable to respec skills mid-combat makes scrolls much more useful than they were in D:OS 1. I disagree with a one-scroll-per-turn limit just because of Memory alone.
Grenades and Special Arrows
Honestly I didn't bother using these even though I had a Rogue and Archer. I was doing good damage with normal attacks and Height Bonus + Flesh Sacrifice arrows that it didn't feel needed to do special attacks.
But I guess increasing the AP cost sounds good if they're a problem.
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The quick item bar idea is interesting, but I haven't decided if I like it or not.
