I know that to get Kimahri's Celestial weapon you have to activate 3 Cactuar Stones in the Thunder Plains. But what I want to know is, do you activate any random stone or are there 3 in particular, and if so where are they???
Oh and while i'm in the Thunder Plains with the 200 Lightning bolts that you have to dodge for Lulu's sigil does it affect anything if you get a battle?