I'll admit that I haven't read the full thread, so apologies if this has been suggested. I feel like they should use the proc system which we are already familiar with and give bliz3 a chance to proc an instant bliz4 under enochian. It would be consistent with the toolkit, and allow to use Sharpcast to force a proc in situations where you're going to be tight on refreshing the budf because of movement. If Sharpcast was down and it didn't proc, then Swifcast would remain an option.

Alternatively, they could give us a trait that lowers the recast of Swiftcast.