He used Chainer, Dementia Master as the commander. So on his turn he copies Medomai with Mirror, use Chainer to bring back Gary and deals X damage to me and another opponent, he attacks my opponent with Mirage which is a copy of Medomai, the person doesn't have flying blockers so damage gets through triggering Medomai ability to get an extra turn. Then after finishing his turn he sacrifice Gary with a sacrifice outlet and Mirage Mirror becomes the artifact again. Now he starts the extra turn doing the same thing (copying Medomai, bringing back Gary with Chainer, attacking the opponent with Mirage, damage gets through and gets an extra turn, sacrificing Gary, Mirage becomes the artifact again) and the loop goes and goes.
In this scenario Mirage Mirror copying Medomai over and over and getting combat damage through does not get affected by Medomai's second ability (Medomai the Ageless can’t attack during extra turns.)?