March of the Machine

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

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 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 // Truga Cliffcharger | Battle // Creature | Siege // Rhino | (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, create a Treasure token. Then you may discard a card. If you do, draw a card. // Trample When Truga Cliffcharger enters, you may discard a card. If you do, search your library for a land or battle card, reveal it, put it into your hand, then shuffle. | Manuel Castañón