The bracket system looks at five main criteria: if the deck includes two-card combos (and how early you can use them) if it can take or chain extra turns, whether there's any mass land destruction, how many tutors are included, and how many game changers are included

Deck 2 Archfiend of the Dross (ONE) 82 3 Malcolm, Alluring Scoundrel (LCI) 63 3 Coveted Falcon (MKM) 48 3 Cut Down (DMU) 89 4 Darkslick Shores (ONE) 250 4 Spyglass Siren (LCI) 78 3 Deep-Cavern Bat (LCI) 102 2 Demonic Pact (AKR) 99 3 Shifting Grift (OTJ) 66 4 Gloomlake Verge (DSK) 260 3 Preacher of the Schism (LCI) 113 2 Greed's Gambit (BIG) 8 3 Hopeless Nightmare (WOE) 95 3 Unholy Annex // Ritual Chamber (DSK) 118 6 Island (FDN) 275 6 Swamp (ZNR) 382 4 Undercity Sewers (MKM) 270 2 Withering Torment (DSK) 124 Sideboard 1 Tinybones, Bauble Burglar (FDN) 72 3 Spell Pierce (NEO) 80 2 Dreams of Steel and Oil (BRO) 92 1 Duress (ONE) 92 1 Tinybones, Bauble Burglar (FDN) 72 3 Malicious Eclipse (LCI) 111 1 Duress (ONE) 92 3 Ghost Vacuum (DSK) 248
Failing any of that, it was all modular, so anything he couldn't finish was easy to pull out, and everything had simpler alternatives
Fortunately, the game engine allows interaction via attacking and blocking for them and the rewards for winning the battle are in casting card types already in the game