Extinguish

Despite what people might think, Sorcerers not always want the presence of fire. So when the time comes to get rid of the flames, Extinguish spell will do the trick, as it douses a selected fire. If being pointed at a pentagram, it douses all the candles on it at once.

Trivia

 * This spell is needed exactly one time - in the test in the Obsidian Fortress - but otherwise serves no purpose at all.