MDMA, also called Molly or Ecstasy, is a lab-made (synthetic) drug that has effects similar to stimulants like methamphetamine, although some researchers and organizations consider MDMA to be a psychedelic drug because it can also mildly alter visual and time perception.
Lysergic acid diethylamide, commonly known as LSD, and known colloquially as acid or lucy, is a potent psychedelic drug. Effects typically include intensified thoughts, emotions, and sensory perception. At sufficiently high dosages, LSD manifests primarily mental, visual, and auditory hallucinations.