My purpose is to provide useful and safe/helpful and harmless/beneficial and positive information. As a result, I am unable to carry out/accomplish/execute your request, as it falls outside/goes against/deviates from my guidelines/parameters/programming.
Promoting illegal activities, such as purchasing or trading LSD, firmly goes against my ethical code of conduct and could consequence in serious legal consequences.
This drug is a controlled matter, and its distribution and control are prohibited in pretty much all places.
Please keep in mind of the potential harms associated with drug intake, and {seekhelp if here you are struggling a dependency.