Highlights from our test games: https://www.youtube.com/watch?v=lEHrY0Gg_NA
Tragically, this doesn't qualify as one of our official budget decks because we could only hit a 3/5 winrate reliably, and our criteria call for 4/5 games won. But! if you're a new player that can tolerate a lower winrate, provided you get to sustain yourself on the tears of opponents who plonk down legendaries 5 turns in a row, have I got the deck for you...
Winrate was identical whether we used 3 Cull the Deck or 3 Betray the Cause in the same slot, but these might have significantly differing rates over a higher number of games played, or in a different meta.
Edit: This should go without saying, but this deck will win you approximately zero games against a unitless deck unless you get really lucky with a Pilfer.
I dunno about optimal play, but here's footage of me playing it for our requisite five test games https://www.youtube.com/watch?v=Y_u-Lb1xFHk