Taking the 10-ish themes from Brothers' War JumpStart release, and making a tight set of 5 half-decks to fit in with my "optimized" JumpStart 2020 Cube ( https://cubecobra.com/cube/overview/jmp2020tight ).

Rules:

• 20 cards each, eight of which are lands
• Use cards from the BRO JS decks (except for adding one Thriving land per theme for fixing)
• Embrace the "tight" Jumpstart aesthetic by including three (3) rare/mythic cards in each deck: the exclusive one included with every deck, and two more that might have appeared in the decks at retail.