Complex sentence: Damien Sandow is also known for using this move during 2012-2013, naming it the Terminus; and Gail Kim, also used it as a finisher during her first TNA and as a signature move thereafter, naming it the Happy Ending.
Split into simpler sentences: Damien Sandow is also known for using this move during 2012-2013, naming it the Terminus. And Gail Kim, also used it as a finisher during her first TNA and as a signature move thereafter, naming it the Happy Ending.