The Brothers' War

Loran, Disciple of History | Legendary Creature | Human Artificer | Whenever Loran, Disciple of History or another legendary creature enters the battlefield under your control, return target artifact card from your graveyard to your hand. | Cristi Balanescu

Static Net | Enchantment | | When Static Net enters the battlefield, exile target nonland permanent an opponent controls until Static Net leaves the battlefield. When Static Net enters the battlefield, you gain 2 life and create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Josh Hass

Thopter Architect | Creature | Human Artificer | Whenever an artifact enters the battlefield under your control, target creature gains flying until end of turn. | Michal Ivan

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