March of the Machine

Errant and Giada | Legendary Creature | Human Angel | Flash Flying You may look at the top card of your library any time. You may cast spells with flash or flying from the top of your library. | Cristi Balanescu

Halo Forager | Creature | Faerie Rogue | Flying When Halo Forager enters the battlefield, you may pay {X}. When you do, you may cast target instant or sorcery card with mana value X from a graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead. | Kevin Sidharta

Invasion of Amonkhet | Battle | Siege | (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) When Invasion of Amonkhet enters the battlefield, each player mills three cards, then each opponent discards a card and you draw a card. (To mill three cards, a plaver buts the top three cards of their library into their graveyard.) | Jokubas Uogintas

Baral and Kari Zev | Legendary Creature | Human | First strike, menace Whenever you cast your first instant or sorcery spell each turn, you may cast a spell with lesser mana value that shares a card type with it from your hand without paying its mana cost. If you don't, create First Mate Ragavan, a legendary 2/1 red Monkey Pirate creature token. It gains haste until end of turn. | Fariba Khamseh

Mutagen Connoisseur | Creature | Vedalken Mutant | Flying, vigilance Mutagen Connoisseur gets +1/+0 for each transformed permanent you control. | Alex Brock

Zimone and Dina | Legendary Creature | Human Dryad | Whenever you draw your second card each turn, target opponent loses 2 life and you gain 2 life. {T}, Sacrifice another creature: Draw a card. You may put a land card from your hand onto the battlefield tapped. If you control eight or more lands, repeat this process once. | Lie Setiawan