Historical Rules · 29 September 2017
Rule 901.11c
Official source text from the 29 September 2017 Rules release
If a player planeswalks when there is more than one face-up plane card, that player planeswalks away from all such planes.
Historical Rules · 29 September 2017
Official source text from the 29 September 2017 Rules release
If a player planeswalks when there is more than one face-up plane card, that player planeswalks away from all such planes.