If you (and players solving with you) deduce how all 13 puzzles are connected like the master sleuth Alquist Proft, you may even discover there's something more hidden underneath it all
Quick Draw could do with another counterspell or two (even though nobody likes them), and 38 mana might be one or two too many for a deck with a relatively cheap mana curve
For example, We would be remiss in our duty of making FINAL FANTASY trading cards if we didn't depict the astrologian job
So this is likely a card worth building decks around, though there's some conflict between something that protects other legendary creatures and a desire for a horde of weenies
If only red had access to some number of cards which said creatures cant block this turn, or if the Commander format had a history of developing tech to efficiently defend creatures from spot removal would that make Breath of Fury a premiere game-ending spell
Delve is a fantastically strong mechanic in any format with cheap spells and fetch lands, and getting the best two out of seven cards with no drawback is a huge advantage