Leon's Method
Great Blood Transference Technique. That is the name of the grand technique, the trump card of the Bloodfiend Sect.
As previously explained and as the name suggests, it was a special technique capable of transferring one's cultivation to another and grant them a temporary boost in their own cultivation.
The Great Blood Transference Technique had no limits to the number of participants. As long as the blood cultivator had practiced the grand technique to the small success stage, they can join the group and transfer their cultivation to one person.
If it were only that simple, Leon would not find it troublesome to deal with these so-called 'small fries' labeled by Don.
He just had to kill all the weaker disciples first before focusing on the Transcendent-level disciple, but that was where the problem lay. There were no weak disciples.