The initial version was developed to enhance wizard qualifications, particularly in the direction of the soul.
The final version, in the process of eliminating soul-related factors, deliberately adjusted the research direction, focusing on strengthening physical qualities rather than enhancing physical talent.
Wizard Serene was right in what she said.
The final version of the potion is actually tailor-made for Lokan by Link.
This hypothesis reflects Wizard Serene's keen senses as a talented potion development specialist.
Link is a generous person.
Lokan had shown malice towards him, but it hadn't escalated to hostility or even intent to kill.
The only harm he had done to Link was a slap and a threatening statement of "I'll be watching you."
So, Link's revenge was relatively mild, not extreme.
It didn't escalate to killing.