Historical Rules · 30 September 2011
Rule 506.3
Official source text from the 30 September 2011 Rules release
Only a creature can attack or block. Only a player or a planeswalker can be attacked.
Historical Rules · 30 September 2011
Official source text from the 30 September 2011 Rules release
Only a creature can attack or block. Only a player or a planeswalker can be attacked.