Garlic

Garlic (GA) is a pungent member of the onion family, long lauded for its culinary value. Found on Earth, Britannia and the Serpent Isle, this bulbous herb has been used as a magical ward in all three cultures, and plays a prominent role as a reagent in Britannian and Serpent Islander magic.

Britannia
Among the most common and inexpensive of Britannian reagents, garlic is readily available from farmers and magical vendors alike, and is prepared simply by grinding several peeled cloves into a paste. In spell weaving, this plant serves as a ward against illness, poison and beings in an undead state.

Earth
Having observable antimicrobial, antiviral and antifungal properties, garlic has long been used by Terran herbalists as a primitive means of combating infections and was believed in a number of western societies to ward away demons, malevolent spirits, vampires and werewolves. In Hindu, Jain and Buddhist traditions, however, garlic and similar plants are thought to "heat the blood" and are avoided by religious ascetics, whereas in Islam, some myths purport that the odorous herb was left by the footfalls of Satan, himself, as he left the Garden of Eden. 

Trivia

 * Contrary to Terran legends, simple possession of garlic will not protect an individual from the danger of the Britannian undead. The herb must used in an appropriate  spell to repel such beings.