March of the Machine

Guardian of Ghirapur | Creature | Angel | Flying When Guardian of Ghirapur enters the battlefield, exile up to one other target creature or artifact you control. Return it to the battlefield under its owner's control at the beginning of the next end step. | Cynthia Sheppard

Invasion of Theros // Ephara, Ever-Sheltering | Battle // Legendary Enchantment Creature | Siege // God | (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 Theros enters, search your library for an Aura, God, or Demigod card, reveal it, put it into your hand, then shuffle. // Ephara, Ever-Sheltering has lifelink and indestructible as long as you control at least three other enchantments. Whenever another enchantment you control enters, draw a card. | Johan Grenier

Chrome Host Seedshark | Creature | Phyrexian Shark | Flying Whenever you cast a noncreature spell, incubate X, where X is that spell's mana value. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) | Donato Giancola

Invasion of Segovia // Caetus, Sea Tyrant of Segovia | Battle // Legendary Creature | Siege // Serpent | (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 Segovia enters, create two 1/1 blue Kraken creature tokens with trample. // Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for {1} or one mana of that creature's color.) At the beginning of your end step, untap up to four target creatures. | Edgar Sánchez Hidalgo

Ayara, Widow of the Realm // Ayara, Furnace Queen | Legendary Creature // Legendary Creature | Elf Noble // Phyrexian Elf Noble | {T}, Sacrifice another creature or artifact: Ayara, Widow of the Realm deals X damage to target opponent or battle and you gain X life, where X is the sacrificed permanent's mana value. {5}{R/P}: Transform Ayara. Activate only as a sorcery. ({R/P} can be paid with either {R} or 2 life.) // At the beginning of combat on your turn, return up to one target artifact or creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. | Anna Podedworna

Bloated Processor | Creature | Phyrexian | Sacrifice another Phyrexian: Put a +1/+1 counter on Bloated Processor. When Bloated Processor dies, incubate X, where X is its power. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) | Brock Grossman

Voldaren Thrillseeker | Creature | Vampire Warrior | Backup 2 (When this creature enters the battlefield, put two +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.) {1}, Sacrifice this creature: It deals damage equal to its power to any target. | Viko Menezes

Polukranos Reborn // Polukranos, Engine of Ruin | Legendary Creature // Legendary Creature | Hydra // Phyrexian Hydra | Reach {6}{W/P}: Transform Polukranos Reborn. Activate only as a sorcery. ({W/P} can be paid with either {W} or 2 life.) // Reach, lifelink Whenever Polukranos, Engine of Ruin or another nontoken Hydra you control dies, create a 3/3 green and white Phyrexian Hydra creature token with reach and a 3/3 green and white Phyrexian Hydra creature token with lifelink. | David Auden Nash

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

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