Pyrotechnics

From Ardrana

The pyrotechnics spell draws on an existing fire source to produce one of two effects, at the option of the caster.

First, it can produce a flashing and fiery burst of glowing, colored aerial fireworks that lasts one minute. This effect temporarily blinds those creatures in, under, or within 120 feet of the area and that have an unobstructed line of sight to the burst. The fireworks fill a volume 10 times greater than that of the original fire source.

This spell can also cause a thick, writhing stream of smoke to arise from the source and form a choking cloud. This covers a roughly spherical volume from the ground or floor up (or conforming to the shape of a confined area) that totally obscures vision beyond 2 feet. The smoke fills a volume 100 times that of the fire source.

The spell uses one fire source within a 20-foot cube, which is immediately extinguished. An extremely large fire used as a source might be only partially extinguished. Magical fires are not extinguished, although a fire-based creature (such as a fire elemental) used as a source suffers damage.

Note: This spell originally appeared in this form in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.