Question about Passive skills

[Mikhail von Hohenheim]

where can you modify the Passive Skills?? like modifying the bonus from steel crow and tooth of warg??

and also about the sword master skills??

 

[malufett]

check @battle.c search keyword 'mastery'

 

[Mikhail von Hohenheim]

check @battle.c search keyword 'mastery'

thank you so much,,,