I know it's crossing genres, but I really think this would be good for X-Wing. It would be an Upgrade Card that you would discard, that then you would be allowed to roll every Attack Die you own and apply them any way you want to any of your opponent's ships.
It would be great for FFG, because it would really move more of the Core Sets again as people got all the dice.
And I really think that X-Wing would be better if there was an option for the one-turn kill and victory. Plus, it would really speed up the tournament scene and create an unarguable one-build-only meta.