Land {T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.
Uncommon (C1)
Illus. Anson Maddocks

10/4/2004: Can target an untapped attacking creature. Both parts of the effect will try to happen even if one part does nothing useful. So if it tries to untap an already untapped card, it will still make the creature neither deal nor receive damage.
10/4/2004: The creature is still part of the combat. It just has its damage prevented. Don't infer something from the fact that it becomes untapped.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander