Aetherdrift

Caelorna, Coral Tyrant | Legendary Creature | Octopus | | Deruchenko Alexander

Diversion Unit | Artifact Creature | Robot | Flying {U}, Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {3}. | Xabi Gaztelua

Memory Guardian | Artifact Creature | Robot Artificer | Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Flying | Hardy Fowler

Sabotage Strategist | Creature | Vedalken Ranger | Flying, vigilance Whenever one or more creatures attack you, those creatures get -1/-0 until end of turn. Exhaust — {5}{U}{U}: Put three +1/+1 counters on this creature. (Activate each exhaust ability only once.) | Darren Tan

Scrounging Skyray | Creature | Fish Pirate | Flying Whenever you discard one or more cards, put that many +1/+1 counters on this creature. Cycling {2} ({2}, Discard this card: Draw a card.) | Ron Spears

Slick Imitator | Creature | Ooze | Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.) Max speed — {1}, Sacrifice this creature: Copy target spell you control. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.) | Xabi Gaztelua

Spikeshell Harrier | Artifact Creature | Robot Turtle | When this creature enters, return target creature or Vehicle an opponent controls to its owner's hand. If that opponent's speed is greater than each other player's speed, reduce that opponent's speed by 1. This effect can't reduce their speed below 1. | Alfonso Santano

Transit Mage | Creature | Human Wizard | When this creature enters, you may search your library for an artifact card with mana value 4 or 5, reveal it, put it into your hand, then shuffle. | Mark Poole

Skyserpent Seeker | Creature | Snake | Flying, deathtouch Exhaust — {4}: Reveal cards from the top of your library until you reveal two land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order. Put a +1/+1 counter on this creature. (Activate each exhaust ability only once.) | Johan Grenier