Historical Rules · 1 October 2009
Rule 901.9a
Official source text from the 1 October 2009 Rules release
If a plane leaves the game while a "planeswalking ability" for which it was the source is on the stack, that ability ceases to exist.
Historical Rules · 1 October 2009
Official source text from the 1 October 2009 Rules release
If a plane leaves the game while a "planeswalking ability" for which it was the source is on the stack, that ability ceases to exist.