pyrotechnist

noun2

1. •
   (old-fashioned) A pyrotechnician: person skilled in the manufacture or setting off of fireworks and firework displays.

   • That the Secretary of the Navy be, and he is hereby, authorized to appoint a pyrotechnist for the service of the navy, […] — 1862
2. •
   (figurative) One who demonstrates a brilliant display, as of rhetoric or wit, or of virtuosity in the performing arts.

   • "It is thus the pyrotechnist (should we say demiurge?) who gives meaning to the so to speak explosive effervescences that are weaving the world of the spectator" — 2006