If you do decide to use Satoru Umezawa in a ninjutsu deck, it still has an added benefit
As with other Brawl Modified Metagame Challenges, this event has its own list of banned cards: Oko, Thief of Crowns Ajani, Nacatl Pariah Rusko, Clockmaker Old Stickfingers Wrenn and Six Ragavan, Nimble Pilferer A -Nadu, Winged Wisdom Lutri, the Spellchaser Tamiyo, Inquisitive Student Tajic, Legion's Valor Follow the Story of Secrets of Strixhaven The narrative behind Secrets of Strixhaven has been unfolding at a collegiate clip as the set gets closer to launch
Basically, they are cards that are otherwise typical creature cards, but some condition allows you to flip them over so that they become a new card
The Cryptbreaker on the other hand provides quick and reliable card draw as well as getting free value with certain from the bin cards or dud draws
You may not expect the most impactful card in a new set to be a one-mana uncommon, but I foresee Boltwave being exactly that once the dust settles
now a fan seems to have received, not a copy of the (admittedly rather good) goblin precon they ordered, but a leaked Hatsune Miku product that wasn't even announced yet