If I'm honest, I'm not sure whether that's such a great idea. When people ask you what the meaning of that tattoo is 5 years down the track, will you be comfortable with saying it's inspired by a video game? Will you still like Final Fantasy as much as you do now? A tattoo is for life so you have to make sure you choose something that you won't get sick of and come to regret.

The Griever symbol is pretty cool (I assume you mean the one where it's like the lion's head on a cross) but it's very intricate for a first tattoo. If you're not wimpy about the pain, then I suppose it doesn't make a difference whether it goes on first or fifth, especially if you're set on getting it.

Other than that, best of luck with it. And pictures please if you do get it.