History of CR 310.12b

Every distinct wording since 2010, newest first.

August 7, 2026 · The Hobbit
Sieges have the intrinsic ability “When the last defense counter is removed from this permanent, exile it, then you may cast it transformed without paying its mana cost.”
February 1, 2010 · Worldwake
rule 310.12b not present in this release