Warlocks were a branch of ancient Magi, and possessed enormous strength as a result of their bloodlines.
Warlocks of a rank not only had all the abilities a regular Magus of that rank held, but also the amplification of their bloodline. Their powers greatly surpassed those of regular Magi.
Why couldn’t such a powerful branch dominate the Magus World? Why, instead, did they lay low in the South Coast and Twilight Zone, with even the central continent only containing a small number of them?
All of this could be attributed to their main problem—the shackles of their bloodlines!
According to Kubler, unlike Magi who could continuously improve, the advancement of Warlocks was largely dependent on the bloodline they inherited.