History of CR 900.1

Every distinct wording since 2010, newest first.

September 30, 2011 · Innistrad

This section contains additional optional rules that can be used for certain casual game variants. It is by no means comprehensive.

June 17, 2011 · Commander 2011

This section contains additional optional rules that can be used for certain casual game variants.

February 4, 2011 · Mirrodin Besieged

This section contains additional optional rules that can be used for certain casual game variants. It is by no means comprehensive.

October 1, 2010 · Scars of Mirrodin

This section contains additional optional rules that can be used for certain casual game variants.

February 1, 2010 · Worldwake

This section contains additional optional rules that can be used for certain casual game variants. It is by no means comprehensive.