Blue decks more than most are able to make use of cards they cannot immediately cast which means having access to this kind of power is far less of a risk even for some agro lists
Wrap-Up Record-wise, we technically finished 2-3 in our league with the deck, but that really undersells just how close we were to winning another match or two
Suspected creatures can't block, so you can push damage through
If you have a way to give Jorn haste, he can pay for himself, and later in the game, one attack from Jorn can net a crazy amount of value depending on how many snow permanents you control
The elves and elementals found by Nissa, both of which have a great number of options to choose from, just go into your hand, and the rest of the cards don't go to the graveyard, so opponents feel less threatened by your commander