2x12 Master Plan+watch online+*children Search Toggle navigation activity Toggle Dropdown history discuss follow editors rules Toggle Dropdown common by group by name recent edit Toggle Dropdown content name type refresh children mates references out references in 2x12 Master Plan+watch online+*children+*children Cards formed by "mating" 2x12 Master Plan+watch online+*children with another card. eg: "2x12 Master Plan+watch online+*children+mate".