Zask, Skittering Swarmlord Zask, Skittering Swarmlord is already great because you can cast insects and play lands from your graveyard, netting you huge value and pointing at a way to build a deck around it
Examples: Rally the Monastery or Rakshasa's Bargain
Her -2 can act as some pretty nice removal, especially because it is so repeatable
Officially, there are only 39 of these cards, though 2 more were never handed out, bringing the actual number to 41
In Dinosaur-centric decks like Gishath, Sun's AvatarGishath, Sun's Avatar, you could use it to fetch up the brand new Ghalta, Stampede TyrantGhalta, Stampede Tyrant to spill your hand full of creatures onto the battlefield, and create an instant army, or grab Etali, Primal ConquerorEtali, Primal Conqueror to get some free spells
Improvements + Cards To Drop Princesses and Queens make for a good theme, but honestly the deck is a little all over the place