The version of my Skycrag Aggro deck I was using when I reached Masters for the first time. It’s been through a lot of versions and it’s still clearly not really refined, but it worked well enough.
There’s nothing revolutionary here; the deck is based around the classics of the archetype like Champion, Dusk Raider, Flame Blast...
Insignias would definitely help a lot. I’m using the smuggler because I happened to open it: I generally think Ixtun Merchants might be better, though he does synergise with Obliterate, which I actually haven’t played because I only crafted it shortly before reaching Masters and posting this list. Before that it was Mortar, which is a fair bit weaker, and really just hopes to give a little more reach.