from Casual Battle Box - List - Cube Cobra by Don’t Sleep On This AWESOME Budget MTG Format - YouTube
A Guide to Battle Box — Lucky Paper Battlebox: No Setup, No Bad Mana, All Magic - YouTube - Lucky Paper
According to Cube Cobra, this should only cost like 20$ and Battle Box sounds like a fun casual format
(add 10 lands for each player, 20 cards total: 1 of each color + 5 dual lands)
I built mine in 2024 and it’s a hoot!