There are hundreds if not thousands of liquors throughout all the lands, but few ever manage to stand out from the rest. The defining trait between a run of the mill booze and a rare and special spirit can often be a gimmick. This is what master brewer Donovan learned all too well.
What if casting magic changed (for a few hours or days depending on the strength of the spell) the colour of the skin of the spellcaster? It could lead sadly to a very racist world to rp in.