Well, it's finally happened. The league's worst kept secret is no longer a secret. Vegas and Toronto are collaborating on a sign-and-trade that will see Mitch Marner ink an eight-year deal at a $12 million AAV before getting shipped to Vegas for Nicolas Roy (pending trade call).

What Does Vegas Get?

Although perceptions of his tenure in Toronto will be coloured by underwhelming playoff performances, Marner was consistently excellent in the regular season for the Leafs. We're talking five-straight campaigns at a hundred-point pace. Only seven players in the league have more points than Marner since he entered the league in 2016. 

Thinking about Marner's fit in Vegas, there are a few layers to consider. 

First, there's the matter of linemates. In recent years, Marner spent most of his even-strength minutes beside Auston Matthews – a strong two-way centre with elite goal scoring ability. You know who else fits a similar description? Vegas' top centre Jack Eichel. While I could certainly see a fit between Eichel and Marner, Eichel has also fit really well with Ivan Barbashev and Mark Stone in recent years, so the Golden Knights might not want to break up that top line. There's a world in which Marner slots in on the second line beside Tomas Hertl and possibly Pavel Dorofeyev. I know what you're thinking – Brennan, you idiot, Vegas is not paying Marner $12 million to skate on the second line. And sure, there's merit to that idea – particularly the part about me being an idiot – but Marner on the second line would give Vegas two incredibly dangerous trios. He may not have the reputation that Eichel or Matthews has, but Hertl is also a high-end goal scorer in his own right, and skating alongside a playmaker like Marner could really take his offensive game to another level. I think there's some overlap between Marner's skillset and Stone's skillset as defensively responsible playmakers, so while it may be tempting to go nuclear and stack the top line, splitting Marner and Stone might make a bit more sense. 

Another layer here is the power play. Vegas was outstanding with the man advantage last season, ranking second in the league with a 28.3% success rate. One might want to keep the top unit intact after such amazing results, but if you're paying Marner $12 million a year, you have to use him on PP1. This isn't just about money either. Over the last four years, Marner ranks top-15 in power-play points, so it just makes sense to put his PP talent to use. Dorofeyev may get demoted to PP2 due to a lack of seniority, but he deserves to be there as a shooting threat. Only 11 players in the league outdid his 13 power-play goals last year. It might make sense to drop Stone to PP2 considering the overlap between his and Marner's skillset. Given Stone's age and injury history, putting slightly less on his plate would allow him to be fresh when called upon. Although he racked up an impressive 25 PPPs in 66 games this past season, he hadn't been a huge PP producer prior to that, and doesn't demand top-unit PP time the same way Marner does.

Overall, I expect Marner to perform well in Vegas, where scrutiny will be much less than what he faced in Toronto. That said, it may take some time to find the right combinations, so it's hard to say exactly who benefits/suffers from this move until we get more clarity in that area. I'm sure my talented fellow writers will provide other angles of this move in the coming weeks, so stay tuned to Dobber Hockey this offseason!

What Does Toronto Get?

In Nicolas Roy, Toronto gets a third-line centre with far more offensive upside than Scott Laughton or David Kampf, and far more defensive reliability than Max Domi. Roy's offensive numbers won't jump off the page, but he frequently upped his production during stretches of elevated opportunity with the Golden Knights. You look at the Panthers, whose third line was integral to the 2025 Championship. Roy has the potential to be part of a legitimately threatening third unit, now it's a matter of finding him the right wingers (and left wingers…). He won't have too much value in fantasy formats, but if an injury opens up a spot in Toronto's top-six, he may be someone to add from your league's waiver wire. 

We'll see how Toronto addresses the hole left in their lineup following Marner's departure, but the Matias Maccelli acquisition is certainly a smart step. Check out our breakdown of that move here.