Historical Rules · 13 November 2015
Rule 506.3
Official source text from the 13 November 2015 Rules release
Only a creature can attack or block. Only a player or a planeswalker can be attacked.
Historical Rules · 13 November 2015
Official source text from the 13 November 2015 Rules release
Only a creature can attack or block. Only a player or a planeswalker can be attacked.