Some objects have abilities that refer to the number of creatures the permanent devoured. “It devoured” means “sacrificed as a result of its devour ability as it entered the battlefield.”
May 3, 2019 · War of the Spark
A creature “attacks alone” if it’s the only creature declared as an attacker in a given combat phase. See rule 506.5.
January 25, 2019 · Ravnica Allegiance
A creature "attacks alone" if it's the only creature declared as an attacker in a given combat phase. See rule 506.5.
May 1, 2014 · Journey into Nyx
A creature “attacks alone” if it’s the only creature declared as an attacker in a given combat phase. See rule 506.5.
February 1, 2014 · Born of the Gods
A creature "attacks alone" if it’s the only creature declared as an attacker in a given combat phase. See rule 506.5.
July 13, 2013 · Magic 2014
A creature "attacks alone" if it's the only creature declared as an attacker in a given combat phase. See rule 506.5.
June 17, 2011 · Commander 2011
rule 702.82b not present in this release
February 1, 2010 · Worldwake
If a spell has multiple instances of cascade, each triggers separately.