[MegaBlues]

I think the system of invocations just needs to be changed as a whole. Time has proven that with their current implementation, trying to balance their cost, effect, and counterplay isn't possible.

But if invocations stay as they are and become easier to interrupt, they need to be given more range so that they can be cast without the risk of someone running up and wasting your momentum. And the interrupt should be similarly costly to the person inflicting it.