These are alternate art, specially treated cards which offer special variants on other, standard cards in any given set
This is the list I would play moving forward (click here for an importable list): (31): 2 Archon of Emeria 4 A-Luminarch Aspirant 4 Skyclave Apparition 4 Elite Spellbinder 1 Brutal Cathar 4 Hopeful Initiate 4 Thalia, Guardian of Thraben 4 Inquisitor Captain 4 Sigardian Evangel (2): 2 The Wandering Emperor Spells (2): 2 Circle of Confinement (25): 1 Cave of the Frost Dragon 3 Eiganjo, Seat of the Empire 4 A-Faceless Haven 17 Snow-Covered Plains 2 Archon of Emeria 2 Portable Hole 2 Adeline, Resplendent Cathar 1 Brutal Cathar 4 Fleeting Spirit 2 Valorous Stance 1 Ao, the Dawn Sky 1 The Wandering Emperor If you like these articles and want them to continue, make sure to check out my Patreon page
Loxi: It's a weaker, but cheaper Umezawa's Jitte
This is true even if the spell is an instant
Big Game Hunter and Nightshade Assassin are very powerful for decks which can reliably discard them, since madness also doubles as a form of flash
They shouldn't have been reprinted in Magic 2012 where they kept dominating Standard