Historical Rules · 5 October 2018
Rule 901.11c
Official source text from the 5 October 2018 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 · 5 October 2018
Official source text from the 5 October 2018 Rules release
If a player planeswalks when there is more than one face-up plane card, that player planeswalks away from all such planes.