If a plane leaves the game while a “planeswalking ability” is on the stack, that ability ceases to exist.
January 25, 2019 · Ravnica Allegiance
If a plane leaves the game while a "planeswalking ability" is on the stack, that ability ceases to exist.
May 1, 2014 · Journey into Nyx
If a plane leaves the game while a “planeswalking ability” is on the stack, that ability ceases to exist.
July 1, 2012 · Magic 2013
If a plane leaves the game while a "planeswalking ability" is on the stack, that ability ceases to exist.
September 30, 2011 · Innistrad
A player may planeswalk as the result of the "planeswalking ability" (see rule 309.6) or because the owner of the face-up plane card leaves the game (see rule 901.9).
June 17, 2011 · Commander 2011
A player may planeswalk as the result of the “planeswalking ability” (see rule 309.6) or
April 1, 2011 · Duel Decks: Knights vs. Dragons
A player may planeswalk as the result of the "planeswalking ability" (see rule 309.6) or because the owner of the face-up plane card leaves the game (see rule 901.9).
February 4, 2011 · Mirrodin Besieged
A player may planeswalk as the result of the “planeswalking ability” (see rule 309.6) or because the owner of the face-up plane card leaves the game (see rule 901.9).
October 1, 2010 · Scars of Mirrodin
A player may planeswalk as the result of the “planeswalking ability” (see rule 309.6) or
February 1, 2010 · Worldwake
A player may planeswalk as the result of the "planeswalking ability" (see rule 309.6) or because the owner of the face-up plane card leaves the game (see rule 901.9).