But what happens if a player blocks or braces for an attack?
The dodge action already gives Advantage on Dex Saves (and disadvantage on Attacks Rolls against the dodger), I guess you'd just have it give Advantage on AC Saves as well.
I've decided there are too many fiddly rules for me to use this though - I've ordered 2 sets of D20s with all my players' dice colours so I can quickly roll Attacks (even with dis/advantage) against all of them instead.
