In a video shared by the team Thursday, he can be seen chasing the puck, playing with players and melting hearts.
According to USA Today, the Blues' front office adopted Barclay, who's named after team legend Baraclay Plager, from Duo, an organization that trains and places service dogs in order to socialize them.
Just in case your first taste of Barclay isn't enough, the pupper has his own Instagram account.
And before the haters start objecting to a dog on the ice, check in your rulebook. Bet you won't find anything in there that says a dog can't play hockey.