We need LD in camp and Larsen is a fairly good one.
I do not really know what he is in the NHL though. He has solid understanding in his own end and his reach certainly helps him, but he needs work on his skating when defending the rush and he is more of an offensive specialist than a stay-at-home guy. His speed is pretty good, but his agility and four-way mobility will need a fair bit of work.
His offense is where he stands out (beyond his size). Nice, hard shot. Solid puck mover on the blueline (to the point where he could realistically be a PP guy at the pro level).
There are actually a fair number of similarities between him and Samuel Mayer, who I did have ranked fairly high. Mayer has a lot of nastiness in his game, however, whereas Larsen does not use his size nearly as much as he should.
Here is from Brock Otten:
He is the most promising invite by a wide margin thus far, but still a massive project (in more ways than one).