The Tie of Exchange.
An old technique which was now used to get into contracts where loyalty and trust were not guaranteed.
Its practise was no longer common in Feinheath or rather in Pelian because of the extreme nature of the punishment for not keeping your end of the bargain as the instigator.
The Tie of Exchange was said to originate from the giants, being a technique first created with the intention of assuring one's life in a disadvantageous situation by offering to give something valuable to the opposite party.
The user of the Tie of Exchange was usually the one with much to lose as after giving up something of theirs to the opposite party, in some cases, they could be summoned for inquiries on delivery of agreed upon items while the opposite party was to ensure that they kept their end of the deal which was usually something meagre.