History of CR 702.66b
Every distinct wording since 2010, newest first.
April 22, 2021 · Strixhaven
The delve ability isn’t an additional or alternative cost and applies only after the total cost of the spell with delve is determined.
May 3, 2019 · War of the Spark
For more information about Fortifications, see rule 301, “Artifacts.”
January 25, 2019 · Ravnica Allegiance
For more information about Fortifications, see rule 301, "Artifacts."
May 1, 2014 · Journey into Nyx
For more information about Fortifications, see rule 301, “Artifacts.”
July 13, 2013 · Magic 2014
For more information about Fortifications, see rule 301, "Artifacts."
June 17, 2011 · Commander 2011
If a creature has multiple instances of frenzy, each triggers separately.
February 1, 2010 · Worldwake
If a spell has multiple instances of gravestorm, each triggers separately.