Troll
A troll is a magical beast of prodigious strength and immense stupidity. In fact, they are so synonymous with stupidity that the lowest wizarding exam failing grade named after them. Trolls were grouped in the taxonomical genus Troglodytarum. Trolls possess rudimentary magic, but it is not fully understood how they apply it.
Appearance
Trolls generally reach a height of about twelve feet and weigh up to a tonne. Troll whiskers have magical properties, and are sometimes used as wand cores, though they are considered inferior to the Supreme Cores. Their feet have two toes, both with giant toenails.
Behaviour
They are dangerously violent and incredibly aggressive, and they engage in unpredictable behaviour, comparable to giants. They are also incredibly low in intelligence when compared to other species; to give at least one example, giants seem to have more intelligence than the troll, despite their otherwise similarities. Trolls are particularly attracted to unpleasant smells, such as Dungbombs.
Diet
Trolls, similar to Acromantulas, have a taste for human flesh. They enjoy it raw, but are not exactly fussy about what the eat. Trolls are also fond of fish.
Society and culture
Troll language can appear to be nothing more than simple grunts that only trolls seem to be able to interpret, though skilled magical multi-linguists can understand them. Trolls understand only a limited number of human words, and some of the smarter ones who knew English could be skillfully trained as security trolls.
Mountain trolls have been known to tame and ride Graphorns, or at least try to ride them. However, Graphorns are not very keen on the idea.
History
Trolls originated in Scandinavia, but were later found all across Europe.
Trolls were not recognised as magical beings, but instead classified as beasts by the Department for the Regulation and Control of Magical Creatures of the British Ministry of Magic, most likely due to their aggressive natures.
Pierre Bonaccord, the first Supreme Mugwump of the International Confederation of Wizards, wanted to stop troll-hunting and give them rights, but his appointment to that office was contested by Liechtenstein, since they were having problems with a tribe of very dangerous mountain trolls at the time.
Artemius Lawson was an outspoken advocate for the strict restraint of trolls. He thought it was wrong to allow them to roam free, stating that "they were creatures who weighed a ton, but had brains the size of a bogey".
Trolls participate in wizarding society to some extent; some witches and wizards make a career out of training security trolls.
Defence Against
When faced with a troll try:
Mountain troll
Mountain Trolls stand twelve feet tall. They are the largest of the various troll species. They have grey skin, a lumpy body, and flat horny feet. They exude a powerfully awful smell that is reminiscent of “a mixture of old socks and the kind of public toilet no one seems to clean.” Its nose is full of what looks like lumpy, grey glue: troll bogeys. It is also the most violent kind of troll.
Forest troll
Forest trolls have pale-green skin and straggly hair. This breed of troll is native to forests or woodlands, and some may have even lived in the Forbidden Forest.
River troll
River Trolls have hairy purple skin and short horns. It is often found lurking under bridges or in the middle of rivers.
Part-troll
Beings with some, but not a complete, amount of troll heritage or blood, as well as part human blood.
