Finding the right m2 file and blp file

[Pdot]

Hello guys, first time here. Been lurking many years

Well this time I need some help I can't find any answers for.

So what I'm doing right now is playing 2.4.3 TBC. Trying to edit all the priest holy spells into shadow spells. I'm edgy like that.


So anyway, everything has been going well, changed almost all spells into different shadow variants, very cool!

However.. on last bastard remains, and to me its the most important one too. Power word: Shield... This bastard will never change! I managed to change the impact m2 and the hands of course but that damn shield wont go away!

So anyone to the technical bit. This is what I've done.

Find the spell m2, (sometimes also blp) I want to change.
Find the spell m2 (somtimes also blp) I want it to change into.

Then changing the file names and copy it back into the common.mpq

But with powerword shield this doesnt work for some reason. Maybe because im trying to change the wrong spells.

Anyone know what m2 and blp the spell uses? Because I cant find any documentations about this anywhere! Im going crazy! Been looking around in the MPQ's for hours now!


TLDR
Need to find Power word: Shield m2.file and blp.file.

Regards
Edgy priest