In my story's world, witchcraft is a respected institution, with the most powerful practitioners being at the top echelons of society. Due to this, society traces its lineage through matrilineal lines. Witchcraft is usually exclusive to females, however there is a way for males to gain access to magic abilities. Magic works through incantation, in which an individual says a phrase while using their mana to power the spell. A witch has the ability to share her power with another using an advanced, ancient ritual. They can open up their connection to magic with the respective individual, creating a "warlock". Warlocks can draw on a percentage of mana of the respective witch to conduct spells, up to 50%.
Some rules with this system:
- A witch can use her max limit of 50% in different combinations. Ex: she can share fully half her power with one other male or spread it out over 5 people with 10% each.
- When a witch dies, the warlock loses access to their mana and can no longer use magic. When a warlock dies, the amount of mana that was siphoned off by him returns to the witch.
- Advanced spells that require a certain amount of mana become harder or impossible for a witch when a warlock is siphoning mana from them.
- A witch can revoke the connection between her and the warlock with an equally advanced, complex spell without him being present.
Under these circumstances, what would be the benefit of creating a warlock when it makes the witch weaker? Why would one invest in this process?