X-TREME Prime Wardens Argent Adept Variant Unlock

Here's the obligatory thread in which to discuss the attempts (and hopefully successes, eventually) at unlocking the latest variant.

This week: X-TREME Prime Wardens Argent Adept!

My attempt (which did not succeed) went as follows, and was inspired by the details put forth by the team's bio, as found during the ARG.

First, I lost against Progeny, with the normal Prime Wardens team (vanilla characters, no variants.) and then, just to be safe, I did the same with the Prime Wardens variants.

Then, I had the team beat up some Villains (Biomancer, Greazer, Miss Information, Operative, and Bugbear; the ones that has their nemeses in them. Biomancer was chosen because he was explicitly mentioned in their bio).

Then they defeated Progeny, again in their Prime Wardens variants, in Atlantis.