Oath
From SuspireWiki
Oaths are very important in the Invictus. Invictus coteries are expected to swear loyalty to one elder, usually the Prince, if the Prince is an Invictus member, but any member of the covenant is appropriate. Due to the importance of these oaths, they are usually sworn with great pomp and circumstance (barring the Oath of Defense). During a swearing all the involved Kindred are dressed in full regalia and perform ceremonial rites established centuries ago during the age of the Camarilla. These rituals often take hours, with the covenant’s elders watching as the pledging vampire makes a long speech in which he swears his oath in the most verbose manner possible, followed by the elder accepting the pledge, also in lengthy, formal terms. After that, the elder is congratulated on his new vassal and the vassal passes through a greeting line of all important Invictus elders and ancillae in the city, ostensibly so they can pass on wise or inspiring bon mots, though that does not always prove to be the case.
What the elder gets from the young Kindred is relatively straightforward, but what the younger vampires get from the older varies a great deal. Sometimes the coterie members benefit from easy access to the elder they’re sworn to, other times the elder provides them with a commitment of resources or a competent servant of some sort (equal to Retainer ••• or better). However it turns out, the elder almost always gets the better end of the bargain.