Name: Planar Collapse Cost: 1W CMC: 2 Color: W CID: W Type: Enchantment Rules Text: At the beginning of your upkeep, if there are four or more creatures on the battlefield, sacrifice this enchantment and destroy all creatures. They can't be regenerated. Set/Rarity: Urza's Legacy rare, The List rare Legality: Legal in premodern, Legal in legacy, Legal in predh, Legal in duel, Legal in commander, Legal in vintage, Legal in oathbreaker Price: $0.49 Foil price: $19.71