Cartel Aristocrat, Dark-Dweller Oracle, & Fireblade Artist:
Behold we are in the presence of the progenitor. The aristocrat style decks have just been elevated to a whole new class of degeneracy. I cannot wait to see how these cards will have affect on the rest of the format.
Purphoros's Emissary:
Another good representative of Hill Giants with upside! I like this card a lot as it allows you to grow a creature taller or add another body to the board. It has mild protection against removal when bestowed on another creature which is always a boon.
Lyev Skyknight & Militia Bugler:
They heard the call and they have answered. Militia Bugler is a very welcome downshift. It's a fantastic flicker target as it can dig for a lot of creatures with powerful effects. Lyev Skyknight is also another welcome addition for flicker and tempo decks. It plays a lot better then Court Hussar in flicker decks and brings in that unique Azorius tempo flavour.
Relief Captain & Tuskguard Captain:
The supports have arrived! At least for +1/+1 counter strategies they have. Tuskguard Captain doesn't come with a +1/+1 counters on arrival but Outlast is a very strong mechanic in long grindy matchups and Relief Captain is a nice upgrade over Basri's Acolyte.
Experiment One:
Evolve is a fantastic mechanic and with large bodies available in green, Experiment One will only continually grow. A very welcome addition to the cube and explores areas besides ramp.
Advanced Stitchwing:
This was a difficult creature to kill back in Shadows of Innistrad block draft, and its come back to put its reputation back on the line for a second time. This could even be woven into the cube as one of the staples as it enables so many advanced strategies and is powerful on its own.
Dreg Mangler, Liliana's Elite, & Seekers' Squire:
Golgari has just unearthed a trove of new toys. A 3/3 with haste that can live on later in the game by passing its stats to something else, a seemingly weak creature which can grow very quickly, and a creature that can either draw a card, fuel the graveyard, or grow to be a sizeable blocker. All things making a solid GB rock.
Monastery Swiftspear & Tenth District Legionnaire:
And out of nowhere Swiftspear comes in for the finale. I was not expecting that this card would be downshifted but my god is it a good one. This will become a main stay in the cube, and moving the goal posts higher for all future limited 1-drops in red. Alongside it, Tenth District Legionnaire replaces Wojek Halberdiers as the premier Boros sign post. We now have a powerful reason to consider supporting heroic.