Yes, they do draw cards, but Aura decks don't have problems with card advantage thanks to all the aura payoffs in white
And lately, theyve been buying more than ever, raising the price back to 2015 levels and probably prompting a reprint as part of this sets doubling theme to keep things from getting too hysterical
Boros Charm If you dont want to pay eight mana to give all your creatures indestructible, there are plenty of cheaper options
Still, once it resolves, you can choose how to kill your opponent slowly by either casting spells from the top of their library without paying mana, shrinking their hand, killing their creatures, and, if they've survived long enough, exiling all their non-land permanents with the ultimate