https://forums.d3go.com/discussion/89752/survivors-of-the-four-tribes-part-1

''"We weren't fleeing a broken world. We were running toward paradise!"'' The aftermath of the phyrexian invasion affected all tribes of Ixalan pretty hard; which made the new discoveries coming through the recently found caverns to the underground even more enticing. But how precarious the great forces of Ixalan were left, to rely their future on a gold rush? We will see a bit about how the Merfolks and Pirates of Ixalan are dealing with it.