Halo foil, foil-etched, and extended-art cards are all exclusive to March of the Machine: The Aftermath Collector Boosters

." Abandon Reason Abandon the Post Abandoned Sarcophagus Abhorrent Oculus Absolver Thrull Abstergo Entertainment Abstract Performance Abyssal Harvester Academy Rector Acorn Harvest Admiral Brass, Unsinkable Adorned Crocodile Adorned Pouncer Advanced Reconstruction Aegis Sculptor Afterlife from the Loam Against All Odds Agatha's Soul Cauldron Agent of Erebos Agent of Kotis Agonizing Remorse Alchemist's Assistant Alchemist's Greeting Alex Wilder, Runaway All Hallow's Eve All Suns' Dawn Alms Alms of the Vein Altar of Bhaal Altar of Bhaal Altar Ibn-La'Ahad Alter Reality Ambush Wolf Amphin Mutineer Anafenza, the Foremost Analyze the Pollen Anathemancer Ancestor's Embrace Ancestral Tribute Ancient Grudge Ancient Vendetta Angel of Deliverance Angel of Finality Angel of Glory's Rise Angel of Grace Angel of Indemnity Angel of Sanctions Angelfire Ignition Anikthea, Hand of Erebos Animate Graveyard Anje's Ravager Annie Flash, the Veteran Anointer Priest Antiquities on the Loose Aphemia, the Cacophony Apostle of Purifying Light Appeal // Authority Appeal // Authority Aquatic Alchemist Aquatic Alchemist Arala, Hedron Scaler Arashin Sunshield Araumi of the Dead Tide Arcane Bombardment Arcane Heist Arcane Infusion Arcane Proxy Archenemy's Charm Archfiend of Sorrows Archfiend of Spite Archfiend's Vessel

Land ramp spells that put extra lands onto the battlefield (Cultivate, Rampant Growth)
Ancestral Recall is my personal favorite out of the Power 9, and is probably the second strongest (or at least tied with Time Walk) with its ability to generate amazing amounts of card advantage
That creature becomes a copy of the card with the chosen name until Killer Cosplay becomes unattached from it. This allows you to turn a common card into a mythic rare, but you do need to know a fair bit about Magic: The Gathering to be able to pick the right creature for the situation
Her wickedly talented witchcraft allows her to conjure blight wherever she pleases and even stabilize wild magic into usable forms