On the Great Weapon Fighting reroll issue, another similar thing I'd point out is that we need some sort of visual indicator when we have advantage so we can see both dicerolls. At the moment even if you should be getting advantage it still only brings up one diceroll and you have to assume that advantage worked right and it just animated the higher one, but it'd be nice to see both, just like how with Great Weapon Fighting it'd be nice to get the option whether or not to reroll the 1's and 2's.