March of the Machine

Attentive Skywarden | Creature | Phyrexian Kor | Flying Whenever Attentive Skywarden deals combat damage to a player or battle, transform up to one target Incubator token you control. | Jodie Muir

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

Kithkin Billyrider | Creature | Kithkin Knight | Double strike | Zara Alfonso

Monastery Mentor | Creature | Human Monk | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever you cast a noncreature spell, create a 1/1 white Monk creature token with prowess. | Brian Valeza

Phyrexian Censor | Creature | Phyrexian Wizard | Each player can't cast more than one non-Phyrexian spell each turn. Non-Phyrexian creatures enter the battlefield tapped. | Alexey Kruglov

Seraph of New Capenna | Creature | Angel Soldier | Flying {4}{B/P}: Transform Seraph of New Capenna. Activate only as a sorcery. ({B/P} can be paid with either {B} or 2 life.) | Aaron J. Riley

Sigiled Sentinel | Creature | Human Knight | Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) Vigilance | Volkan Baǵa

Zhalfirin Lancer | Creature | Human Knight | Whenever another Knight enters the battlefield under your control, Zhalfirin Lancer gets +1/+1 and gains vigilance until end of turn. | Nino Vecia

Harried Artisan | Creature | Human Artificer | Haste {3}{W/P}: Transform Harried Artisan. Activate only as a sorcery. ({W/P} can be paid with either {W} or 2 life.) | Caio Monteiro

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