March of the Machine: The Aftermath

Tazri, Stalwart Survivor | Legendary Creature | Human Warrior | Each creature you control has "{T}: Add one mana of any of this creature's colors. Spend this mana only to activate an ability of a creature. Activate only if this creature has another activated ability." {W}{U}{B}{R}{G}, {T}: Mill five cards. Put all creature cards with activated abilities that aren't mana abilities from among the milled cards into your hand. | Manuel Castañón

Nashi, Moon's Legacy | Legendary Creature | Rat Shaman | Menace, ward {1} Whenever Nashi, Moon's Legacy attacks, exile up to one target legendary or Rat card from your graveyard and copy it. You may cast the copy. (You still pay its costs. A copy of a permanent spell becomes a token.) | Patrik Hell

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