Sonic Emitter+*self+*mates+*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 Sonic Emitter+*self+*mates+*children+*children Cards formed by "mating" Sonic Emitter+*self+*mates+*children with another card. eg: "Sonic Emitter+*self+*mates+*children+mate".