Spire Patrol | Creature | Human Soldier | Flying
When Spire Patrol enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step. | Dan Scott
Tezzeret the Schemer | Legendary Planeswalker | Tezzeret | +1: Create a colorless artifact token named Etherium Cell with "{T}, Sacrifice this artifact: Add one mana of any color."
−2: Target creature gets +X/-X until end of turn, where X is the number of artifacts you control.
−7: You get an emblem with "At the beginning of combat on your turn, target artifact you control becomes an artifact creature with base power and toughness 5/5." | Ryan Alexander Lee
Tezzeret's Touch | Enchantment | Aura | Enchant artifact
Enchanted artifact is a creature with base power and toughness 5/5 in addition to its other types.
When enchanted artifact is put into a graveyard, return that card to its owner's hand. | Chris Rallis
Maverick Thopterist | Creature | Human Artificer | Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
When Maverick Thopterist enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying. | Zack Stella
Rogue Refiner | Creature | Human Rogue | When Rogue Refiner enters the battlefield, draw a card and you get {E}{E} (two energy counters). | Victor Adame Minguez
Dark Intimations | Sorcery | | Each opponent sacrifices a creature or planeswalker, then discards a card. You return a creature or planeswalker card from your graveyard to your hand, then draw a card.
When you cast a Bolas planeswalker spell, exile Dark Intimations from your graveyard. That planeswalker enters the battlefield with an additional loyalty counter on it. | Chase Stone