That panel was the Advocates' first and only appearance, in Uncanny X-Men #444. Looks like the artist was too lazy to design a set of costumes that matched the ones used by the five teams shown in Academy X.
https://marvel.fandom.com/wiki/Uncanny_X-Men_Vol_1_444
Naiad (Aurelie Sabayon)
Boggart (Robin Wise)
Pinpoint (Gerard Cooper)
Trovao (Pedro de Noli)
Umbra (Patrick Nesbitt)
Xenon (Shaun Kennedy)
The entire team was depowered on M-Day. The Official Handbook of the Marvel Universe A-Z and House of M: The Day After named them and explained their fate.