The biggest weakness of the deck is how low the stats of your creatures are
At the time of writing this it is currently sitting at $300.00 price tag, putting it as the second most expensive card in Lorcana history (behind Elsa!)
Sacrifice a Food: Until end of turn, target creature you control assigns combat damage equal to its toughness rather than its power
FromTheShire: The first of our signpost Mentor cycle, Plumecreed feels better for Limited to me, maybe Standard somehow
Theres a character named Drake Stone, a wizard with some downright envy-inducing frosted tips, who in the fiction of the movie is sponsored by WotC as a celebrity spokesperson
The most appealing thing about building with this combo is that it is very compact (requires relatively few card slots) as Restless Reef is a land you would play anyway in most Dimir decks, and Jace is independently a very much playable card already