Confusion In The Ranks and Worldgorger Dragon rulings magic

[Mountain]

What happens when I have a Confusion In The Ranks and I cast a Worldgorger Dragon?

[Arix]

Depends on the order you want to stack them in.

If you put Confusion in the Ranks' ability on the stack first, then first you'll exile everything, then exchange the Dragon for something else, leaving you with just whatever you traded for.

If you put the Dragon's ability on the stack first, then you'll trade first, then exile everything, leaving you with nothing.