Retaining on a non-rental contract alone would put the cost pretty high

It probably costs a 1st and niemela but Larsson isn’t available because he isn’t on the last year of his deal, next year he will be the biggest defender target on the trade bait board I just can’t see him getting moved this year

Unfortunate for us but this makes a lot of sense for the Kraken

Similar instance with ANA and Josh Manson, the Ducks decided not to trade him for 2 deadlines before moving him on the 3rd one to COL

Probably close to McCabe deal

For all of Toronto fan's wants and hopes, Larsson probably doesn't become available until 2024-25 TDL and that's assuming he doesn't get renewed.

I will preface this by saying the odds of Larsson getting traded anytime soon are slim to none, given his contract and importance to the current Kraken team. The Tatar trade further signals Seattle is not ready to punt on this season quite yet. However, purely hypothetically, I would say he'd cost a top-four defensive prospect, a first round pick, and a second round pick. If Seattle were to retain half his cap hit, add on an extra mid-round pick to that. Considering Toronto doesn't have any second round picks for the foreseeable future, the second rounder could be swapped out for a prospect of equal value, but that would depend on how Seattle rates Toronto's prospects.