So, say someone were to throw some kinda spell ({Murder}, just for kicks). If you responded with {Aurelia's Fury}, damaging the player and silencing them, would the Murder resolve since it was on the stack?
Yes
Murder would resolve, the spell has already been cast. They would not be able to cast anything else tho, once Fury resolves anyways. But they could still respond while it's on the stack.
RESOLVED