Cube in this channel's material In this channel's material, Cube appears in the context of Magic: The Gathering — the trading card game. A Cube is a player-built pool of cards, assembled specifically for draft play, rather than the pre-packaged card pools used in most Magic formats. Because a Cube is chosen card by card by its creator, each one reflects the builder's own taste and intended play experience.[^23e9ce0a-e8a6-56d2-b909-12a8202b0a08@0]