Bought this for 500 coins. It's not great. They don't show you any details, stats, abilities or whatnot up front. I guess I figured being a gold item and 500 coins, it'd be good. Nope.

"15% increased chance of shine crystal drops during battle."
No stat boosts to attack or defense. It can't be leveled up. The effect doesn't stack with character abilities that also impact shine crystal drops. And the solar blast doesn't really seem that great against the high end bosses.

I sure wish I had my 500 coins back. I'm never going to use this thing, and they should be more up-front about what it is and what it does.