The main idea of the deck is to have a discard package with the two new cards coming in August of Silver Samurai and X-23.
Silver Samurai most clearly synergises with cards like X-23, Wolverine and Swarm, as they are low power cards you want to discard. He would also synergise with Stature too, with Black Bolt added too for more consistency.
With a bunch of low cost cards you want to discard, Colleen Wing is an obvious inclusion. Carnage was added to be an extra trigger to X-23 and Wolverine once they are already on the board, and potentially clear some clutter.
Enchantress, Killmonger and Aero are all here as tech cards and could be swapped out for other cards like Shang Chi etc.. Killmonger can act as yet another trigger for X-23 while also helping clear out opposing one-drops. Aero and Enchantress are good cards to play alongside stature on the final turn of the game.
Other potential substitutions I've considered (and will test out) are: Nebula - for more consistent power output and a card to play out on the early turns; Shang Chi - all around a great tech card but could be at risk of being discarded by Silver Samurai; Doctor Doom - to limit location variance and can be combo'd with Stature if X-23 was triggered on turn 5; Wave - to counter bounce but also synergise with Doctor Doom and be another way to cheat out Galactus.
The Final card in the deck is Galactus - a surprise card that nobody is going to be expecting in a discard deck. X-23 allows you to potentially play him a turn early, but also her and Wolverine can regenerate into the location if played on turn 6. A turn 5 Galactus can then be followed up with Stature and Swarms if needed or a tech card too.