Tainted Pact is one such piece of cardboard, combining with cards like Thassa's Oracle, Laboratory Maniac, and Jace, Wielder of Mysteries for an instant win
As you open these booster packs and bolster your collection, you'll notice that every card is foil, including Basic Energy
Reflecting this, when the flip card transforms into its dragon form, it unlocks the ability Burning Chains, which means you win the game when your chosen rival loses it
Do you enjoy fateful hour

Your prioritization of commons and uncommons should look something like this: Wingmantle Chaplain The Weatherseed Treaty Tatyova, Steward of Tides Phyrexian Missionary Elas-Il-Kor, Sadistic Pilgrim Nishoba Brawler Tear Asunder Shield-Wall Sentinel Floriferous Vinewall Bortuk Bonerattle Elvish Hydromancer Protect the Negotiators Tolarian Geyser Destroy Evil Knight of Dawn's Light Rona's Vortex Prayer of Binding Extinguish the Light Urborg Repossession Raff, Weatherlight Stalwart Mossbeard Ancient Gibbering Barricade Eerie Soultender Cut Down Runic Shot Coral Colony Blight Pile Vohar, Vodalian Desecrator Knight of Dusk's Shadow Fires of Victory Hurloon Battle Hymn Territorial Maro Uurg, Spawn of Turg Micromancer Walking Bulwark Crystal Grotto and any common dual land where you expect to use both colors Essence Scatter Braid's Frightful Return Phyrexian Espionage Impulse Common dual lands where you dont expect to use one of the colors, but think you might Queen Allenal of Ruadach Sprouting Goblin Yavimaya Iconoclast Tribute to Urborg Academy Wall Shadow Prophecy Tail Swipe Salvaged Manaworker Bone Splinters Artillery Blast Meria's Outrider Clockwork Drawbridge Benalish Sleeper Phyrexian Rager Argivian Phalanx Lightning Strike Theres a lot of wiggle room in here depending on your colors, curve, and the needs of your deck, but thats a rough order of the cards you should be interested in
