Kaladesh

Skyswirl Harrier | Creature | Bird | Flying | John Severin Brassell

Hightide Hermit | Creature | Crab | Defender When Hightide Hermit enters the battlefield, you get {E}{E}{E}{E} (four energy counters). Pay {E}{E}: Hightide Hermit can attack this turn as though it didn't have defender. | Jason Kang

Tezzeret's Ambition | Sorcery | | Draw three cards. If you control no artifacts, discard a card. | Tyler Jacobson

Ambitious Aetherborn | Creature | Aetherborn Artificer | Fabricate 1 (When this creature enters the battlefield, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.) | Josu Hernaiz

Tidy Conclusion | Instant | | Destroy target creature. You gain 1 life for each artifact you control. | Bastien L. Deharme

Wayward Giant | Creature | Giant | Menace | Filip Burburan

Riparian Tiger | Creature | Cat | Trample When Riparian Tiger enters the battlefield, you get {E}{E} (two energy counters). Whenever Riparian Tiger attacks, you may pay {E}{E}. If you do, it gets +2/+2 until end of turn. | Igor Kieryluk

Aradara Express | Artifact | Vehicle | Menace Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.) | Adam Paquette

Bastion Mastodon | Artifact Creature | Elephant | {W}: Bastion Mastodon gains vigilance until end of turn. | Victor Adame Minguez

Self-Assembler | Artifact Creature | Assembly-Worker | When Self-Assembler enters the battlefield, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, then shuffle. | Noah Bradley