A permanent or player with protection can’t be targeted by spells with the stated quality and can’t be targeted by abilities from a source with the stated quality.
January 25, 2019 · Ravnica Allegiance
A permanent or player with protection can't be targeted by spells with the stated quality and can't be targeted by abilities from a source with the stated quality.
February 1, 2014 · Born of the Gods
A permanent or player with protection can’t be targeted by spells with the stated quality and can’t be targeted by abilities from a source with the stated quality.
July 13, 2013 · Magic 2014
A permanent or player with protection can't be targeted by spells with the stated quality and can't be targeted by abilities from a source with the stated quality.
September 30, 2011 · Innistrad
A creature with flying can't be blocked except by creatures with flying and/or reach. (See rule 509, "Declare Blockers Step," and rule 702.9, "Flying.")
June 17, 2011 · Commander 2011
A creature with flying can’t be blocked except by creatures with flying and/or reach. (See
February 1, 2010 · Worldwake
Multiple instances of shroud on the same permanent or player are redundant.