Apocalypse is the twenty-third Magic: The Gathering expansion and was released in June 2001 as the third set and second small expansion in the Invasion block.
Apocalypse featured 143 black-bordered cards (55 commons, 44 uncommons and 44 rares). Its expansion symbol is Yawgmoth's mask.[2][3] Like Invasion and Planeshift, Apocalypse prominently features multicolored cards. Unlike its predecessors, Apocalypse focused on cards with "enemy" color pairings. Examples of the enemy color theme include pain lands, split cards, cards with enemy color kicker costs (e.g. Orim's Thunder), cards with two enemy color kicker costs (the Volver cycle), cards with abilities requiring an enemy color (e.g. Angelfire Crusader, enchantments which gave bonuses if you controlled permanents of an enemy color (the Sanctuary cycle) and cards with enemy color casting costs. Apocalypse also expanded on the kicker block mechanic and introduced enemy-color gradient text boxes on lands to match the friendly-color ones added in Invasion.