Once your Vault progresses to 100%, youll be able to open it
Should you miss a critical land drop you can pitch a card and use the Mox or should you need to colour fix the Mox may be able to help out
Then get a mix of packs from the sets that are in the current Standard rotation: Wilds of Eldraine , The Lost Caverns of Ixalan , Murders at Karlov Manor , Outlaws of Thunder Junction , Bloomburrow , Duskmourn: House of Horror , Foundations , Aetherdrift , Tarkir: Dragonstorm , Final Fantasy , Edge of Eternities , Spider-Man , Avatar: The Last Airbender , Lorwyn Eclipsed , and Teenage Mutant Ninja Turtles
Student of Elements / Tobita, Master of Winds I love the design of Student of Elements
4 Innistrad: Crimson Vow commons