Magic: The Gathering Comprehensive Rules Changes - Core Set - Ninth Edition to Ravnica: City of Guilds

Old rule (Core Set - Ninth Edition)	New rule (Ravnica: City of Guilds)
212.6d. [Click to view all changes.]
212.6d. The basic land types are Plains, Island, Swamp, Mountain, and Forest. If an object uses the words "basic land type," it's referring to one of these subtypes. A land with a basic land type has an intrinsic ability to produce colored mana. (See rule 406, "Mana Abilities.") The land is treated as if its text box included, "{T}: Add [mana symbol] to your mana pool," even if the text box doesn't actually contain text. Plains produce white mana; Islands, blue; Swamps, black; Mountains, red; and Forests, green.	212.6d. The basic land types are Plains, Island, Swamp, Mountain, and Forest. If an object uses the words "basic land type," it's referring to one of these subtypes. A land with a basic land type has an intrinsic ability to produce colored mana. (See rule 406, "Mana Abilities.") The land is treated as if its text box included, "{T}: Add [mana symbol] to your mana pool," even if the text box doesn't actually contain text or the card has no text box. Plains produce white mana; Islands, blue; Swamps, black; Mountains, red; and Forests, green.

Old rule (Core Set - Ninth Edition)

New rule (Ravnica: City of Guilds)

212.6d.

The basic land types are Plains, Island, Swamp, Mountain, and Forest. If an object uses the words "basic land type," it's referring to one of these subtypes. A land with a basic land type has an intrinsic ability to produce colored mana. (See rule 406, "Mana Abilities.") The land is treated as if its text box included, "{T}: Add [mana symbol] to your mana pool," even if the text box doesn't actually contain text. Plains produce white mana; Islands, blue; Swamps, black; Mountains, red; and Forests, green.

212.6d.

The basic land types are Plains, Island, Swamp, Mountain, and Forest. If an object uses the words "basic land type," it's referring to one of these subtypes. A land with a basic land type has an intrinsic ability to produce colored mana. (See rule 406, "Mana Abilities.") The land is treated as if its text box included, "{T}: Add [mana symbol] to your mana pool," even if the text box doesn't actually contain text or the card has no text box. Plains produce white mana; Islands, blue; Swamps, black; Mountains, red; and Forests, green.