The 2016 NHL trade deadline is on Monday, and already we’re seeing players filtered into one of two categories like so much email spam:

Category 1: Big names we all hoped would move that actually will likely remain with their teams. Sorry, those who covet Keith Yandle.

Category 2: Significantly smaller names that will undoubtedly move at the deadline because of their current situations in contract and team fortunes. Thus begins the Dale Weise Derby.

There’s a third category, of course: Significant names that could move at the deadline, and could be game-changers for the contenders that acquire them.

Here are 10 of those players, ranked by their game-changingness.

10. Jannik Hansen, Vancouver Canucks

Defenseman Dan Hamhuis is likely on the move, if they can get the pending UFA to waive his no-trade clause (most likely for somewhere in the West). Far more interesting is Hansen, who is signed through 2018 at a miniscule $2.5 million cap hit.

He’s having his best offensive season (19 goals in 55 games) and turns 30 next month. Jason Botchford makes the argument that he’s too valuable for the Canucks to deal: “He can work with the Sedins, sure, but he could also move down the lineup and carry a couple of young players if you didn’t want them to, say, drown.”

That might be true. Also true: He’d be a valuable piece for any contender that acquires him, now and for the next two seasons.

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9. Scott Hartnell, Columbus Blue Jackets

He’s 33 years old and has 19 goals and 20 assists in 58 games. He’s signed through 2019 at $4.75 million against the cap and has a full no-move.

So there’s risk in acquiring him, but there’s also reward: He’s a terrific net-front presence on the power play. He’s a total pain in the ass to play against, and a total joy to have in your own room.

It won’t take much to get him, given the state of the Jackets and that trade protection. And someone could buy him out before the end of the deal if his body falls apart. For now, an interesting option. Would it shock anyone to see Hartnell head back to Nashville, who could use his skills-set in the West?

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8. Jiri Hudler, Calgary Flames

So, last season was an aberration. Oh well. Fact is that Hulder can still help a good team up front, potentially in a top-six role. And he’s unrestricted after this season with no trade protection. That $4 million cap hit, pro-rated, should be manageable. David Jones and Kris Russell probably also move, but Hudler’s the most interesting.