We have access to Impulse, so why play an inferior version when you could just play the original
As the name suggests, Standard Brawl only allows you to use cards legal in Standard
For the aggressive players: Within RangeWithin Range Adeline, Resplendent CatharAdeline, Resplendent Cathar Castle EmberethCastle Embereth For the token players: Infantry ShieldInfantry Shield Divine VisitationDivine Visitation Chittering WitchChittering Witch For the Aristocrats players: Aron, Benalia's RuinAron, Benalia's Ruin Deadly DisputeDeadly Dispute Bastion of RemembranceBastion of Remembrance And finally, ignoring its commander, the most valuable cards in the deck: Goldlust TriadGoldlust Triad Ainok Strike LeaderAinok Strike Leader Grand CrescendoGrand Crescendo This is a deck that couldve nabbed the top spot in several years past lets see what beat it
TCG GAMES FOR BOTH COLLECTING
I do not think anything dictates how a random selection needs to be made, so I'd say the answer is that any mutually agreeable method is fine, and if you can't agree, call a judge