The Brothers' War

Air Marshal | Creature | Human Soldier | {3}: Target Soldier gains flying until end of turn. | Johan Grenier

Curate | Instant | | Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Draw a card. | Ryan Valle

Defabricate | Instant | | Choose one — • Counter target artifact or enchantment spell. If a spell is countered this way, exile it instead of putting it into its owner's graveyard. • Counter target activated or triggered ability. | Uriah Voth

Drafna, Founder of Lat-Nam | Legendary Creature | Human Artificer Advisor | {1}{U}: Return target artifact you control to its owner's hand. {3}, {T}: Copy target artifact spell you control. (The copy becomes a token.) | Lie Setiawan

Fallaji Archaeologist | Creature | Human Scout | When Fallaji Archaeologist enters the battlefield, mill three cards. You may put a noncreature, nonland card from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on Fallaji Archaeologist. (To mill a card, put the top card of your library into your graveyard.) | Caroline Gariba

Machine Over Matter | Instant | | This spell costs {1} less to cast if you control an artifact creature. Return target nonland permanent to its owner's hand. | Tuan Duong Chu

Scatter Ray | Instant | | Counter target artifact or creature spell unless its controller pays {4}. | Awanqi (Angela Wang)

Thopter Mechanic | Creature | Human Artificer | Whenever you draw your second card each turn, put a +1/+1 counter on Thopter Mechanic. When Thopter Mechanic dies, create a 1/1 colorless Thopter artifact creature token with flying. | Joshua Raphael

Zephyr Sentinel | Creature | Human Soldier | Flash Flying When Zephyr Sentinel enters the battlefield, return up to one other target creature you control to its owner's hand. If it was a Soldier, put a +1/+1 counter on Zephyr Sentinel. | Inkognit

Harbin, Vanguard Aviator | Legendary Creature | Human Soldier | Flying Whenever you attack with five or more Soldiers, creatures you control get +1/+1 and gain flying until end of turn. | Kieran Yanner

Evangel of Synthesis | Creature | Phyrexian Human Cleric | When Evangel of Synthesis enters the battlefield, draw a card, then discard a card. As long as you've drawn two or more cards this turn, Evangel of Synthesis gets +1/+0 and has menace. | Denman Rooke

Third Path Iconoclast | Creature | Human Monk | Whenever you cast a noncreature spell, create a 1/1 colorless Soldier artifact creature token. | Manuel Castañón

Surge Engine | Artifact Creature | Construct | Defender {U}: Surge Engine loses defender and gains "This creature can't be blocked." {2}{U}: Surge Engine becomes blue and has base power and toughness 5/4. Activate only if Surge Engine doesn't have defender. {4}{U}{U}: Draw three cards. Activate only if Surge Engine is blue and only once. | Daarken