Has this D3 into MB Dead On been explored? You can also do the setup without side switching, simply just do a single sky alert intp D3
Edit: Fairly easy to get into the knockdown situation, and you can of course fake the MB dead on and do an empty jump and bait wakeups etc. At least it can be used to keep the opponent on their toes, and switch up the knockdown situation.
And if you hit the MB dead on, you have a similar knockdown where you can dash on their corpse and neutral jump MB dead on again. Does 25-26% unclashable for one bar if you hit all of the arrows.