There's potential for some interesting late-game developments here, but it takes a long while and a lot of luck to build up to the point that Winter's most powerful abilities can be activated , leaving plenty of space for opponents to charge ahead in the meantime
Honestly, if over the next couple of weeks the metagame shakes out in such a way that Shifting Ceratops is extremely popular and sees a lot of maindeck play, I would be pretty hesitant to register Mono-Blue, and at the very least would be (sadly) eyeing up Mist-Cloaked Herald as a way to attack past Ceratopss Moat mode
There are three card types in Lorcana
You can force folks to head Gideons way instead of yours, destroy some tapped stuff, or turn into a nasty creature to attack from nowhere
Pikachu 1999 Pokemon Jungle 1st Edition Card #60
As a black commander, Tinyboness MV also helps since you can expect this guy to die, a lot