Is this game as good as FFVI? In terms of mostly story, character and over all fun.

Title.

How to level up quickly and effortlessly? Even if it's not level 99, I want to be able to hit most bosses once. What strategies do you recommend?

I've cast it both with time mage and bard, yet the health doesn't move at all, even after several actions. Could understand slow, but not even a single point of health gained per 3 actions each character? It's the same effect as not having it at all.

I know I asked this two months ago, but I'm asking again because I am at the end game. I just tried to learn Self-Destruct from a Grenade and it will not target me when I use control on it. HOW are you supposed to learn this blue magic? I'd like to finish this game at 100% and I'd like to avoid having to play through it a second time for this one stupid achievement. So, that said: if you cannot learn Self-Destruct through the use of Control, and they don't use Self-Destruct unless you Control them...how do...