It isn’t - well, not entirely, anyway. In The Destruction of Mankind, Ra sends Hathor down to earth to kill humankind, which has conspired against him. Hathor becomes the bloodthirsty Sakhmet and not even Ra changing his mind about the massacre can stop her. The gods decide to trick her by dyeing beer red with ochre (or in some versions, with the blood of the humans already slaughtered), and filling the river with it. Sakhmet, thinking it blood, drinks all the beer and falls in a beer coma. They bring her back to the realm of the gods, where she becomes Hathor once again.

Yes, and they can either answer you honestly or let you count for yourself.

Bands with other was a horrible, horrible mechanic.

We let Red occasionally exile with its direct damage, but we try to avoid any color (outside of special environments like Battle for Zendikar) care about things being exiled.

Not everything has to be a cycle even if the first thing that did it was a cycle.

What do you mean by mill?

Yes, the token still enters the battlefield as a copy of Exarch as it last existed on the battlefield, but it won’t have the Splinter Twin ability since that’s not a copiable characteristic of the card. Abilities granted to permanents by other cards are almost never copied when you make a copy of that permanent.