If an effect would put a creature onto the battlefield attacking either a player not in the game or a permanent that’s no longer on the battlefield or isn’t either a planeswalker or a battle, that creature does enter the battlefield, but it’s never considered to be an attacking creature. See rule 508.4a.
April 14, 2023 · March of the Machine
If an effect would put a creature onto the battlefield attacking either a player not in the game or a permanent that’s no longer on the battlefield or isn’t either a planeswalker or a battle, that creature does enter the battlefield, but it’s never considered to be an attacking creature.
May 3, 2019 · War of the Spark
If an effect would put a creature onto the battlefield attacking either a player not in the game or a planeswalker no longer on the battlefield or no longer a planeswalker, that creature does enter the battlefield, but it’s never considered to be an attacking creature.
January 25, 2019 · Ravnica Allegiance
If an effect would put a creature onto the battlefield attacking either a player not in the game or a planeswalker no longer on the battlefield or no longer a planeswalker, that creature does enter the battlefield, but it's never considered to be an attacking creature.
February 1, 2014 · Born of the Gods
If an effect would put a creature onto the battlefield attacking either a player not in the game or a planeswalker no longer on the battlefield or no longer a planeswalker, that creature does enter the battlefield, but it’s never considered to be an attacking creature.
September 30, 2011 · Innistrad
If an effect would put a creature onto the battlefield attacking either a player not in the game or a planeswalker no longer on the battlefield or no longer a planeswalker, that creature does enter the battlefield, but it's never considered to be an attacking creature.
June 17, 2011 · Commander 2011
If an effect would put a creature onto the battlefield attacking either a player not in the game
May 1, 2011 · New Phyrexia
If an effect would put a creature onto the battlefield attacking either a player not in the game or a planeswalker no longer on the battlefield or no longer a planeswalker, that creature does enter the battlefield, but it's never considered to be an attacking creature.
April 1, 2011 · Duel Decks: Knights vs. Dragons
If an effect would put a creature onto the battlefield blocking but the creature it would block isn't attacking either the first creature's controller or a planeswalker that player controls, that creature does enter the battlefield, but it's never considered to be a blocking creature.
February 4, 2011 · Mirrodin Besieged
If an effect would put a creature onto the battlefield blocking but the creature it would block isn’t attacking either the first creature’s controller or a planeswalker that player controls, that creature does enter the battlefield, but it’s never considered to be a blocking creature.
October 1, 2010 · Scars of Mirrodin
If an effect would put a creature onto the battlefield blocking but the creature it would block
February 1, 2010 · Worldwake
If an effect would put a creature onto the battlefield blocking but the creature it would block isn't attacking either the first creature's controller or a planeswalker that player controls, that creature does enter the battlefield, but it's never considered to be a blocking creature.