Hello, thanks for the feedback.
Yes, Im improving the Tutorial section with more pages to mention more things.
There are certain items that can only be used outside of battle and viceversa. I'm unsure if I can let the Lucid potion do that. While entering a battle with some buffs is intended, I also don't think is a good idea for the player to drink 10+ items before every boss fight.
The antidote ring and immunity ring seems to be bugged or programed incorrectly. Thanks for letting me know. I'll make sure to fix it next time.
Fake Attack will be rebalanced since like you said, normally is just better to wait for 20 TP instead for the Claw attack.
The food can be unlocked before the Cave boss figth. It is being rebalanced too.
I'm near to finish the new demo, it will be a really big update, so I hope all players like it. Thanks!