Cybermen Squadron Seven mana is a lot, but Cybermen Squadron is one of the best myriad cards in the game, able to give your artifact creatures myriad
These cases come in 4 different sizes, to perfectly fit your OP01-OP13 booster boxes
The fact that Urza just beats these two cards is incredibly frustrating to me, but I do love that these two cards arent affected by Engineered Explosives
That Gamma Timetwister is the only known copy btw
Use Jarad's Orders to get a normal creature for your hand and to put a Dryad Arbor from your library to your graveyard to draw a card
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owners control with a -1/-1 counter on it.) Illustrated by Drew Tucker Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp