M15: The Chain Veil (Foil) meta-non-mtg-single The sturdy cardboard box fits

The sturdy cardboard box fits 75+ single sleeved cards or 65+ double-sleeved cards

and all the lands you need to play

Exhibit: Pay the exhibition cost for a gallery

It works great for sports cards

Apparently our science was a lot more literal than we expected

M15: The Chain Veil (Foil) meta-non-mtg-single The sturdy cardboard box fitsAt the beginning of your end step, if you didn't activate a loyalty ability of a planeswalker this turn, you lose 2 life. {4}, {T}: For each planeswalker you control, you may activate one of its loyalty abilities once this turn as though none of its loyalty abilities have been activated this turn.