So I have Mirror of the Forebears, along with Territorial Hellkite out. Last turn was the first turn that Hellkite came out. Since this game was a 1v1 Hellkite had to attack my opponent. Last turn , I attacked with him and I also attacked with Mirror as it copied Hellkite. So next turn, beginning of combat I copy Hellkite with Mirror. Am I able to attack with mirror?