Kick is taken as a drug – but it’s really a sentient bacterium that more often goes by the name Sublime.
Native to the Marvel Universe, Kick appears to cause psychosis, but this is actually the result of it enabling Sublime to control the minds of whoever takes it – a list which includes Kid Omega, Beast and Magneto (or possibly Xorn – accounts vary). In at least one alternate future, this drug/entity actually succeeded in taking over the world, which is a rare accomplishment for any drug to claim.
Sublime/Kick has few discernable goals, but one of them is the absolute destruction of mutantkind, which it regards as one of the few threats to its existence – largely because it can control mutants only when they take it in Kick, rather than the purely viral control that is sufficient to control most humans.
Related drugs: Mutant Growth Hormone.