But, just as importantly, the 21-year-old comes with something to prove. No matter how the deal is couched, it will hurt that he was rejected by the Bulldogs after coming through their NYC ranks and being named their NRL Rookie of the Year last season.
Whatever happened with Hasler, which has seen Lane not play a single minute of first grade this year, he should be desperate to make his name in Auckland, to prove he has what it takes.
That scenario has worked before at Mt Smart, most notably with James Maloney, but the likes of Lewis Brown, John Carlaw and Robbie Mears also come to mind.
"I really enjoyed my time at the Bulldogs but it wasn't working out this year," said Lane, who will play reserve grade for the Warriors this weekend. "That's football. The opportunity came up to join the Warriors. It's all happened really quickly but I couldn't be happier."
Faitala-Mariner is a player of undoubted promise but his game was probably too similar to others at the club and fits the Bulldogs' needs more closely than the Warriors'.