Historical Rules · 1 July 2012
Rule 704.5i
Official source text from the 1 July 2012 Rules release
If a planeswalker has loyalty 0, it's put into its owner's graveyard.
Historical Rules · 1 July 2012
Official source text from the 1 July 2012 Rules release
If a planeswalker has loyalty 0, it's put into its owner's graveyard.