March of the Machine

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

Invasion of New Capenna // Holy Frazzle-Cannon | Battle // Artifact | Siege // Equipment | (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 Capenna enters, you may sacrifice an artifact or creature. When you do, exile target artifact or creature an opponent controls. // Whenever equipped creature attacks, put a +1/+1 counter on that creature and each other creature you control that shares a creature type with it. Equip {1} | Diego Gisbert

Mirror-Shield Hoplite | Creature | Human Soldier | Vigilance Whenever a creature you control becomes the target of a backup ability, copy that ability. You may choose new targets for the copy. This ability triggers only once each turn. | Alex Brock

Botanical Brawler | Creature | Elemental Warrior | Trample Botanical Brawler enters the battlefield with two +1/+1 counters on it. Whenever one or more +1/+1 counters are put on another permanent you control, if it's the first time +1/+1 counters have been put on that permanent this turn, put a +1/+1 counter on Botanical Brawler. | Jesper Ejsing

Invasion of Kaladesh | 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 Kaladesh enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying. | Leon Tukker

Invasion of Pyrulea | 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 Pyrulea enters the battlefield, scry 3, then reveal the top card of your library. If it's a land or double-faced card, draw a card. | Nicholas Gregory

Invasion of Azgol | 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 Azgol enters the battlefield, target player sacrifices a creature or planeswalker and loses 1 life. | Joshua Raphael

Invasion of Ergamon | 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 Ergamon enters the battlefield, create a Treasure token. Then you may discard a card. If you do, draw a card. | Manuel Castañón