Before we get started, a quick Honorable Mention to the expansion of the unfinished bicycle land and tango land cycles
This allows its controller to reliably gain sizable sums of extra life by simply casting their spells
Summary Rare promo cards in MTG can have significant value, such as Swords To Plowshares and Mutavault
Activated Sleeper Cairn Wanderer Callidus Assassin Cemetery Puca Changeling Outcast Dimir Doppelganger Endling Evil Twin Ghostly Changeling Graveshifter Halfdane Koh, the Face Stealer Lazav, Dimir Mastermind Lazav, Familiar Stranger Lazav, Wearer of Faces Lazav, the Multifarious Likeness Looter Mischievous Sneakling Moonglove Changeling Nameless Inversion Nightsky Mimic Prideful Feastling Skeletal Changeling Super-Skrull The Ever-Changing 'Dane Venomous Changeling Volrath the Fallen Volrath, the Shapestealer Woodlurker Mimic
Oracle of the Alpha | Illustration by Nino Vecia What about Alchemy
You can even mulligan more greedily, as a one or two card deficit matters less over longer games with more draw steps
