Question about Aura + Vaal Aura

Hey,

if I run normal Grace and I got a Cast when Damage taken triggering Vaal Grace, what happens? does Vaal Grace replace the normal Grace? Can i run both the same time? What if my mana is allready reserved, will the Vaal Grace just fizzle? When the Vaal Grace effect is over, will i automatically cast Grace again?

Thanks for the answers and support!

You can have both going, it's not the same aura.

Thanks - oh i just saw, Vaal Auras dont reserve mana. thats nice :)