Have a similar idea but I don't agree with some of your reworks. Royal Road should be the potency buff for whatever card you draw or have already drawn. Spread would "spread" the card buff as an aoe to whatever card you draw or already drawn. Then shuffle would give the duration boost. The Draw ability itself needs to go on cooldown right after you use it instead of after you use the card. Because that is one of the reasons we hardly get to use Draw as much as we should. Because 20 seconds isn't that bad it's because ti doesn't go on cooldown until you use the card.