Question about Arcane Leadership (Aura of magic power)

[Mikisen]

Does that level 10 ability (5% range and spellpierce) stack with the 10% range you can get from items?

I don't have the artifact to try, ONLY answer if you have tried and verified if it does or not. If you have the artifact + have 10% range from other items, please enlighten me by trying

 

[eSo]

yes it stacks and also is group effective.