Aggressive decks can often flood out a bit in the mid-game and fall behind other decks
Internally, their name is slightly different as well, with an "A-" prefix to indicate that they are the rebalanced version
The version described here is a spellslinger deck in which most of your creatures and some other permanents reward you for casting a lot of instants and sorceries , many of which will also damage your opponents and their creatures while refilling your hand
One leading contender was a landfall theme to play up the battle for Gaia and its Lifestream, but that ended up feeling too ambiguous
Magda, Brazen Outlaw Dwarves are a good typal build that work well together
On the bright side, Winota gives us card advantage in Boros in a really exciting fashion, and this is a great avenue that I hope WotC explores in the future