In the horde format, you will need a horde deck. A horde deck is made up of 100 cards, no lands, and should be roughly 60% creature tokens. For added fun and synergy these should be tribal tokens like zombies, elves, or goblins. The horde deck is also allowed 4 copies of nontoken cards unlike the player decks. Horde should always be played with at least 4 players and always with commander decks. The 4 players are on a team against the horde deck. The players life total is shared (add 20 points per player, 4 players = 80 life), while the horde has no life total. If the horde were to take life damage, remove cards from the top of the horde deck into the graveyard/exile. Although player life total is shared, mana is not. The players get two or three free turns to set up before the horde takes its first turn. When the horde takes its turn, flip over cards until you reach a spell. Any tokens are summoned and the spell goes on the stack. The tokens have haste and attack the players every turn if able. The horde cannot designate targets so players may block whichever creatures they choose, any unblocked creatures damage the shared life total. Due to this rule, try to avoid cards that require designating a target. If the horde must make a decision, it can be decided randomly by flipping a coin or a similar method, or coming to a consensus on what choice an actual player would make in that situation to get the best advantage. The horde has infinite mana so any abilities that require mana to activate may be activated as many times as would benefit the horde. The horde has no hand and if a card would be returned to the horde’s hand it can either be set aside to be cast again next turn along with the horde’s normal routine, placed back on top, or shuffled back into the library . The game is over when the horde deck is depleted and has no more creatures on the battlefield that it can attack with or the players are defeated.