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

Invasion of New Phyrexia // Teferi Akosa of Zhalfir | Battle // Legendary Planeswalker | Siege // Teferi | (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 New Phyrexia enters, create X 2/2 white and blue Knight creature tokens with vigilance. // +1: Draw two cards. Then discard two cards unless you discard a creature card. −2: You get an emblem with "Knights you control get +1/+0 and have ward {1}." −3: Tap any number of untapped creatures you control. When you do, shuffle target nonland permanent an opponent controls with mana value X or less into its owner's library, where X is the number of creatures tapped this way. | Chris Rallis

Invasion of Xerex | 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 Xerex enters the battlefield, return up to one target creature to its owner's hand. | Fajareka Setiawan

Marshal of Zhalfir | Creature | Human Knight | Other Knights you control get +1/+1. {W}{U}, {T}: Tap another target creature. | Darren Tan

Zurgo and Ojutai | Legendary Creature | Orc Dragon | Flying, haste Zurgo and Ojutai has hexproof as long as it entered the battlefield this turn. Whenever one or more Dragons you control deal combat damage to a player or battle, look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. You may return one of those Dragons to its owner's hand. | Daarken

Invasion of Alara | Battle | Siege | When Invasion of Alara enters the battlefield, exile cards from the top of your library until you exile two nonland cards with mana value 4 or less. You may cast one of those two cards without paying its mana cost. Put one of them into your hand. Then put the other cards exiled this way on the bottom of your library in a random order. | Mathias Kollros

Omnath, Locus of All | Legendary Creature | Phyrexian Elemental | If you would lose unspent mana, that mana becomes black instead. At the beginning of your precombat main phase, look at the top card of your library. You may reveal that card if it has three or more colored mana symbols in its mana cost. If you do, add three mana in any combination of its colors and put it into your hand. If you don't reveal it, put it into your hand. | Bryan Sola