Gyruda may be a tiny bit better in a Dimir deck due to how easy it will be to cast, but really, as long as your deck is capable of producing either black or blue mana, the card should still be eminently castable and you have to be careful not to get caught in the trap of seeing it as purely a Dimir card, as the majority of two-colour combinations will have access to Gyruda if they want to play it
How will you upgrade your precon
I wonder if theres a good Standard brew that uses this
Look for the four Magic: The Gathering Fallout Commander Decks and Collector Boosters featuring the Vault Boy style cards to hit store shelves on March 8th
There are some interesting ones flying around both in EDH and other competitive formats, and I think theyre worth taking a look at
Beauty and the Beast is the highlight of this Archazia's Island set with Cogsworth Climbing Clock, Maurice Unconventional Inventor, and Belle Apprentice Inventor