The Brothers' War

Urza, Prince of Kroog | Legendary Creature | Human Artificer | Artifact creatures you control get +2/+2. {6}: Create a token that's a copy of target artifact you control, except it's a 1/1 Soldier creature in addition to its other types. | Joshua Raphael

Yotian Tactician | Creature | Human Soldier | Other Soldiers you control get +1/+1. | Fariba Khamseh

Fallaji Vanguard | Creature | Human Soldier | First strike Whenever Fallaji Vanguard or another creature enters the battlefield under your control, target creature gets +2/+0 until end of turn. | Joshua Cairos

Saheeli, Filigree Master | Legendary Planeswalker | Saheeli | +1: Scry 1. You may tap an untapped artifact you control. If you do, draw a card. −2: Create two 1/1 colorless Thopter artifact creature tokens with flying. They gain haste until end of turn. −4: You get an emblem with "Artifact creatures you control get +1/+1" and "Artifact spells you cast cost {1} less to cast." | Aurore Folny

Battery Bearer | Creature | Human Artificer | Creatures you control have "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell." Whenever you cast an artifact spell with mana value 6 or greater, draw a card. | Edgar Sánchez Hidalgo

Mishra, Claimed by Gix | Legendary Creature | Phyrexian Human Artificer | Whenever you attack, each opponent loses X life and you gain X life, where X is the number of attacking creatures. If Mishra, Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking, and you both own and control them, exile them, then meld them into Mishra, Lost to Phyrexia. It enters the battlefield tapped and attacking. | Chris Rahn

Skyfisher Spider | Creature | Spider | Reach When Skyfisher Spider enters the battlefield, you may sacrifice another creature. When you do, destroy target nonland permanent. When Skyfisher Spider dies, you may gain 1 life for each creature card in your graveyard. If you do, exile Skyfisher Spider from your graveyard. | Henry Peters

Tocasia, Dig Site Mentor | Legendary Creature | Human Artificer | Creatures you control have vigilance and "{T}: Surveil 1." (To surveil 1, look at the top card of your library. You may put that card into your graveyard.) {2}{G}{G}{W}{W}{U}{U}, Exile Tocasia, Dig Site Mentor from your graveyard: Return any number of target artifact cards with total mana value 10 or less from your graveyard to the battlefield. Activate only as a sorcery. | Lie Setiawan