Forgotten Tales

So i got the mage, hes level 10 atm. I have many spells in my inventory, yellow, green heal and so on, how do i use them? They do not show up on the screen below my bags to be clicked on like everyone says. At the moment the mage juststands there and cant attack or cast spells. Do i just need to remove him from party cause he does not work in the offline version?

click on the little green bottle, does that help?

Clik green bottle and then spells