In some cases, you can open two, three, or even four rares and/or mythic rares in a single pack

Abduction Aboshan's Desire Abundant Growth Abzan Runemark Accelerated Evolution Acquired Mutation Aerial Modification Aether Meltdown Aether Tunnel Aggression Aggressive Symbiosis Agility Agoraphobia Air Bladder Airtight Alibi Akki War Paint Alexi's Cloak Alien Symbiosis All That Glitters Almost Perfect Alpha Authority Alpha Status Amphibian Downpour Ancestor's Embrace Ancestral Mask Ancestral Vengeance Angelic Destiny Angelic Gift Angelic Reward Animal Boneyard Animal Friend Animate Artifact Animate Dead Animate Graveyard Animate Library Animate Wall Annex Anti-Magic Aura Apathy Aqueous Form Aquitect's Defenses Arachnoform Arachnus Web Arcane Flight Arcane Teachings Arcanum Wings Archery Training Archnemesis Armadillo Cloak Armament of Nyx Armor of Faith Armor of Thorns Armored Ascension Arrest Artifact Possession Artifact Ward Artificer's Hex Asha's Favor Aspect of Gorgon Aspect of Lamprey Aspect of Manticore Aspect of Mongoose Aspect of Wolf Astral Wingspan Audacity Aura of Dominion Auramancer's Guise Avatar Destiny Awaken the Ancient Awakened Awareness Awesome Presence Backfire

Like prior expansions, Shimmering Skies is iterating on the core mechanics of the game with new abilities and effects
How it plays Cast noncreature spells to grow Vivi and ping every opponent
While he can certainly perform admirably within the context of this precon, I believe that youll probably get more mileage out of this deck by replacing Szarekh, the Silent King with one of the other commanders if you plan to upgrade this deck to play in higher power tables
Rolling that one will feel brutal, but it wont happen often