Question: when did marvel contest of champions come out
Answer: 2014-12-10; 2014 12 10; 12-10-2014; 12/10/2014; 2014-12-10; 10 December 2014; 12 10 2014; 10/12/2014; 10 12 2014; 2014 December, 10; 2014 December 10; 10-12-2014