[deafercon]

(seems like this fits general Discussion but correct me if I'm wrong)

Recently I have been playing around with some of the AAs and came across the Sinister Strikes AA which increases offhand damage while dual wielding, but I'm unsure exact where that damage change is made. I saw an old post from a decade ago (2008-2009 ish) that seems to suggest it might be a completely hard coded effect in some files (attack.cpp?) Which is either enabled or not.
Does anyone know if this particular AA effect can be altered directly through database editing (using something like Heidisql) as many of the other AAs can be or would I need to actually make the change in the source files and then re build?