History of CR 310.9d

Every distinct wording since 2010, newest first.

August 7, 2026 · The Hobbit
If a battle’s protector is a different player than its controller, all rules and effects that refer to the “defending player” relative to a battle that is being attacked refer to that battle’s protector rather than its controller. See rule 508.5.
February 1, 2010 · Worldwake
rule 310.9d not present in this release