If you play Flames of the Phenix and have a copy of Desecrated Temple in play that destroys a development when a chaos unit leaves play.

1. Does return count as leaves play?

2. If Flames of the Phenix makes more than 1 card can the chaos player destroy more than one development.

3. Does it happen al at the same time or is it one unit at a time.

1 Yes.

2 Yes, once per unit that has left play.

3 All units return at the same time.