This game is a lot harder than the original. I never had to use so many potions before and I'm actually taking the time to really think when I'm in battles especially during boss and side quests. That Shiva fight was a challenge. I got pretty close on my first try, but it was a struggle after that. I really had to take a good look at my equipment and materia set up. I tried putting the Fire elemental on Cloud's sword so he would always hit her weakness, but for some reason it was still saying Reduced so I instead used the elemental materia to give Aeris Ice resistance.