Art by Zoltan BorosBattlebox is a 1v1 endless format where you share a library. You have lands (5 snow basics and 5 Indestructible MH2 Artifact Dual Lands) in your "command zone" and you play one per turn as your land drop. Starting hand size is 5 with no maximum. Target power level for the battlebox is Serra Angel as a finisher. The list is Pauper+.
Custom design choices beyond the power level include no bottom or tuck effects like Scry or Bant Charm. Nothing can generate or exchange mana. No cards that can target lands or let lands end up in other zones like hand or library. Alternate start: draw 7, keep 4. Original credit to Chimaera's list https://cubecobra.com/cube/list/battlebox
A few minor swaps to add versatility. Fitting in a few more enchantments/artifacts for the cards that care. Mnemonic Sphere is a strict upgrade, and Sniper is better in most situations.