do core mod effects stacks?

[Innominatam]

I mean the main core effect of the mod would that stack with another mod of the same name

[Hefutoxin]

I can't think of any way you could check. Do you have a specific one in mind?

[Vilis]

blaze blessing?

[Yoyo]

it will tell you on the mod/ armor ability if it stacks or not, some do, some dont