"Story goes things started on a downhill turn around these parts near the back end of the War Between the States - seems there was this girl by the name of Ellie-May Robey, an mebbe she had a bit of the gift herself, an mebbe she didn' but she got to being powerful afraid that the young man she were sweet on, name of Johnny Baum was going to catch himself some mischief while he was away fightin' for the cause. Eventually she took on so bad she wen' on up the mountain to see Gammer Ollie, an while Gammer Ollie was known for certain to all the folks about to be a witch - an some said a powerful wicked one at that - there was no denyin that, generally speakin, Gammer Ollie was mighty prone to gettin things accomplished so to speak. Lord alone knows what manner of bargain young Ellie-May struck wi' Gammer Ollie, but sure enough she had her way an', couple of months later, Johnny came marchin' home again… hurrah. Thing of it was though, round about the time Ellie-May was thinking on making her bargain, Johnny had stopped himself a coupl'a minny-balls on the side of Lil' Round Top, and not stopped them in the sort of way that a man recovers from if y' follow me. So his comin' marchin' home didn' really make anyone feel right gay, and word is, nothin' were ever quite right around here from then on…"
Basic Information
Unsurprisingly this is a boon (or favour) from a witch.
People got to witches for the same sort of things as they go to any other kind of worker - power, money, sex, revenge, healing and the finding of lost objects. Since witches tend to be less prone to abide by social conventions they are traditionally more likely to assist with less reputable requests.
Now, given that your actual witch is someone who has obtained their powers by an infernal pact, such things are unlikely to turn out well. Using magic to do evil usually has consequences anyway, and if you have gone to a witch to procure maleficium he or she will make damned sure that those consequences rebound on you and not them if at all possible - otherwise they may well be more prepared to assist with wickedness as it will often advance the agenda of their infernal patron.
And then there's the matter of payment - a witch may take payment in cash or kind like anyone else, but they and the powers they work for tend to charge higher and darker prices for their help, particularly when the client has little or no leverage to haggle with. Really stupid or desperate people pay with 'a favour in return' … which can turn out to be anything and can end up with the luckless client being forcibly transformed into a shape that serves the witches purpose and obliged to toil for a disproportionate length of time. This is a common source of Transformed animals. Payment is rarely dependant on the client getting the outcome they wanted - in fact not getting what you planned for is pretty much garunteed in some traditions.
Conversely, a witch may accept very simple terms of payment if magical items are to be had and some mythological heros are able to pay their way quite easily with artifacts picked up along the way that the witch just happens to want. This may also turn out badly.
In many ways this is something of a deal with the devil by proxy.
The fae are also reputed to make similar deals … especially if compelled or otherwise annoyed. They are not quite as likely to be actively malicious in their dealings, but poor value for payment is still to be expected.
Sources
Game and Story Use
- Use when your PCs are in a fix: a witch can help them … for a price.
- If your PCs want magical help to do something antisocial, a witch may be their only hope.
- Likewise, if they are dealing with obscure dark magic, a witch may be the best source of information.
- Someone who has made a bad bargain with a witch and needs help getting out of it can make a good client for PCs.
- In most cases, the deal made will be enforced to the letter - any deceit will rely on the buyer not "reading the small print" or making unwarranted assumptions. The potential for loopholes in these contracts - benefitting either side - is the basis for a good few stories.
- In the Judeo-Christian tradition, forthright repentance and throwing oneself on divine mercy will usually serve to deliver the hapless purchaser from the consequences of their folly … but will certainly entail loss of any benefit gained from the deal as well. Pagans must rely on loopholes in the contract, trickery or rescue by a patron more powerful than that of the witch.