Rulings are collected from many sources. See credits and disclaimer at the end of the file for details. Unglued and Promotional cards do not yet have official Oracle card texts, so rulings on them are based on Oracle texts made by NetReps.
Complete text is included for cards from all expansions.
These rulings are updated monthly. This means that damage prevention and other replacements may be ignored or counted when testing if the land would be destroyed. All this happens during the resolution. It is a sorcery that happens to produce mana during resolution. This is because the rule for triggered abilities is that the current player's triggers are put on the stack first, then the other player's, and The Rack is normally controlled by an opponent.