x does not eat holes in your brain the x your freind took could have been cut with another amphetamine or maybe even a methamphetamine which is bad when combined with x because x is a pshycadelic methamphetamine and when combined with something like cocaine or ice which its usually cut with there is a higher chance of death. There there might not have even been mdma in it it could have been pma which has x like affects but comes on more slowly and is very deadly as the amount you take to feel the effects is very close to the overdose limit. As for you sg2 if you wanna try x then here is my advice get it from someone who has done alot of x that way they at least can find you a pill with pure mdma and wait at least 2 weeks after you do it your first time to repeat the experience because you brain will turn off some of the seritonin receptors and you need to give them time to turn back on I would also suggest drinking a glass of water every 30-45 minutes.