March of the Machine: The Aftermath

Tolarian Contempt | Enchantment | | When Tolarian Contempt enters the battlefield, put a rejection counter on each creature your opponents control. At the beginning of your end step, for each opponent, choose up to one target creature they control with a rejection counter on it. That creature's owner puts it on the top or bottom of their library. | Tuan Duong Chu

Plargg and Nassari | Legendary Creature | Orc Efreet | At the beginning of your upkeep, each player exiles cards from the top of their library until they exile a nonland card. An opponent chooses a nonland card exiled this way. You may cast up to two spells from among the other cards exiled this way without paying their mana costs. | Yigit Koroglu

Campus Renovation | Sorcery | | Return up to one target artifact or enchantment card from your graveyard to the battlefield. Exile the top two cards of your library. Until the end of your next turn, you may play those cards. | Robin Olausson

Nahiri's Resolve | Enchantment | | Creatures you control get +1/+0 and have haste. At the beginning of your end step, exile any number of nontoken artifacts and/or creatures you control. Return those cards to the battlefield under their owner's control at the beginning of your next upkeep. | Alexey Kruglov

Kiora, Sovereign of the Deep | Legendary Creature | Merfolk Noble | Vigilance, ward {3} Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell from your hand, look at the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value less than X from among them without paying its mana cost. Put the rest on the bottom of your library in a random order. | Chris Rallis

Niv-Mizzet, Supreme | Legendary Creature | Dragon Avatar | Flying, hexproof from monocolored Each instant and sorcery card in your graveyard that's exactly two colors has jump-start. (You may cast that card from your graveyard by discarding a card in addition to paying its other costs. Then exile it.) | Joshua Raphael

Karn, Legacy Reforged | Legendary Artifact Creature | Golem | Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end. | Grzegorz Rutkowski