The search engine is your friend...this has been covered many many times. you can't smoke mdma with conventional ways...the melting point it too close to the point it decomposes for you to do it without a very high degree of control of your heating source. so you would need a lab grade hot plate or something to heat it to its vapor point without burning it. you can however render it back to the freebase and smoke that effectively but I have heard that it is damaging to tissue and could harm you throat/lungs/sinuses ect. it also requiers a good bit of lab equipment and chem knowledge.