Steve Corica has assembled a star-studded squad for the league's newest team ahead of their round one debut with Brisbane Roar on Saturday October 19.
Backed by American billionaire Bill Foley, the Black Knights look set to make a splash in their inaugural campaign.
The former Sydney FC coach has 11 current or past New Zealand internationals at his disposal, as well as three Australians who have all won silverware.
Moreno will complete the puzzle, joining to fill the fifth and final visa position available to them.
"We have signed him. Just waiting on the visa to get done, I think he should be out here in three or four days," Corica confirmed to AAP.
Described by his new coach as a pacy winger and goalscorer, Moreno is the third South American to join Auckland.
When he is cleared, he will join Chilean Luis Felipe Gallegos and Uruguayan striker Guillermo May.
Gallegos, 32, is a box-to-box midfielder who last played for Crete-based Greek club OFI, targeted for his history.
"Because we've got a quite a young squad, the foreigners that we brought in, we wanted to be a little bit more experienced," Corica said.
There are high hopes that May can emulate one of the A-League's best-ever imports, his countryman Bruno Fornaroli, who also arrived in the league in his mid-20s.
"He's that kind of build as well," Corica said of the inevitable Fornaroli comparison.
"He's gets stuck in and works hard for the team as well ... we're hoping that he's gonna score a lot of goals for us.
"He was playing in Argentina (which is) good experience being playing in a league like that, in the top division."
Day 1 in the 09 for our 3�⃣ new internationals 🇳🇿💪 — Auckland FC (@fc_auckland) pic.twitter.com/HKeTeXWH4fSeptember 17, 2024
The Latin flair and well-credentialed locals combine to be one of the most valuable squads in the competition, according to go-to website Transfermarkt.
Moreno's addition bumps the Black Knights to a combined value of $14.2 million, behind only Corica's old club, Sydney FC.
"We're not here to just make up numbers. No. The owner's very ambitious," Corica said of Foley.
"He wants to win.
"So that's our briefing, is to try and win a trophy and be the first New Zealand club to do that."