
Audacious Infiltrator | Creature | Dwarf Rogue | Audacious Infiltrator can't be blocked by artifact creatures. | Jakub Kasper

Conviction | Enchantment | Aura | Enchant creature
Enchanted creature gets +1/+3.
{W}: Return Conviction to its owner's hand. | John Stanko

Countless Gears Renegade | Creature | Dwarf Artificer | Revolt — When Countless Gears Renegade enters the battlefield, if a permanent you controlled left the battlefield this turn, create a 1/1 colorless Servo artifact creature token. | Dan Scott

Aether Swooper | Creature | Vedalken Artificer | Flying
When Aether Swooper enters the battlefield, you get {E}{E} (two energy counters).
Whenever Aether Swooper attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token. | James Ryman

Ice Over | Enchantment | Aura | Enchant artifact or creature
Enchanted permanent doesn't untap during its controller's untap step. | Sidharth Chaturvedi

Negate | Instant | | Counter target noncreature spell. | Zack Stella

Aether Poisoner | Creature | Human Artificer | Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When Aether Poisoner enters the battlefield, you get {E}{E} (two energy counters).
Whenever Aether Poisoner attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token. | Yongjae Choi

Resourceful Return | Sorcery | | Return target creature card from your graveyard to your hand. If you control an artifact, draw a card. | Titus Lunter

Aether Chaser | Creature | Human Artificer | First strike
When Aether Chaser enters the battlefield, you get {E}{E} (two energy counters).
Whenever Aether Chaser attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token. | Jason Rainville

Wrangle | Sorcery | | Gain control of target creature with power 4 or less until end of turn. Untap that creature. It gains haste until end of turn. | Jason Rainville

Druid of the Cowl | Creature | Elf Druid | {T}: Add {G}. | Magali Villeneuve

Highspire Infusion | Instant | | Target creature gets +3/+3 until end of turn. You get {E}{E} (two energy counters). | Anna Steinbauer

Natural Obsolescence | Instant | | Put target artifact on the bottom of its owner's library. | Eytan Zana

Scrounging Bandar | Creature | Cat Monkey | Scrounging Bandar enters the battlefield with two +1/+1 counters on it.
At the beginning of your upkeep, you may move any number of +1/+1 counters from Scrounging Bandar onto another target creature. | Shreya Shetty

Aegis Automaton | Artifact Creature | Construct | {4}{W}: Return another target creature you control to its owner's hand. | Kieran Yanner

Implement of Malice | Artifact | | {B}, Sacrifice Implement of Malice: Target player discards a card. Activate only as a sorcery.
When Implement of Malice is put into a graveyard from the battlefield, draw a card. | Titus Lunter

Verdant Automaton | Artifact Creature | Construct | {3}{G}: Put a +1/+1 counter on Verdant Automaton. | Ryan Alexander Lee

Welder Automaton | Artifact Creature | Construct | {3}{R}: Welder Automaton deals 1 damage to each opponent. | Victor Adame Minguez