https://l2wiki.com/Tempest_Stone these mats only from l2store? i wanted craft https://l2wiki.com/Life_Stone_Instilled_with_Giants'_Power but now looks like it's cheaper to buy elcyums.. top gr spirit stones ~10m = 200m (can be cheaper if you are stronk enough in coc) elcyum ~50-60m = ~1-1.2b tempest stone ~50m in ah.. so it's ~2.5b. and if you count everything you get almost 4b for 50-60% craft.. i thought it should be cheaper.. but looks like buy that ls for elcyums is cheaper.. so question is: there is only 1 way to get those tempest stones? i mean only from l2store? + what chance to get that tempest stone? and what is amount, 1 10 100 from box?