Bounce Land

Bounce lands are nonbasic lands whose entry trigger forces you to return a land you control to your hand, trading tempo for two-color mana production or other utility. The Ravnica karoos like Azorius Chancery tap for two colors, the original Visions cycle like Karoo returns a basic of its color, and the Lair cycle like Treva's Ruins produces three colors while returning a non-Lair land. Distinct from land_types.fetch_land, which sacrifices itself to search out a land, and from land_types.filter_land, which converts mana already produced rather than bouncing a land for value.