Dralnus Crusade answers a lot of the relevant big threats for goblins after sideboard, mainly Circle of Protection: Red, Engineered Plague and Sphere of Law
However, most effects that do this also allow you to cast the copy, and casting the copy will cause magecraft abilities to trigger.
My favorite place for her is leading an Aura-based Enchantress deck, which Ive covered in detail in my article about playing more Auras in Commander
A reliable source of extra lands is Realmbreaker, the Invasion Tree, which allows you to mill three cards from an opponent's deck and then put a land from their graveyard into play
Players would not only have to collect every card from a single set which wouldnt be cheap, they would then have to buy packs after dusting
Each Play Booster pack includes 14 Magic trading cards , with a rarity breakdown designed to keep openings exciting: 1-4 rares or higher, 3-6 uncommons, and 6-9 commons