The Brothers' War

Aeronaut Cavalry | Creature | Human Soldier | Flying When Aeronaut Cavalry enters the battlefield, put a +1/+1 counter on another target Soldier you control. | Lorenzo Mastroianni

Great Desert Prospector | Creature | Human Artificer | When Great Desert Prospector enters the battlefield, create a tapped Powerstone token for each other creature you control. (The tokens are artifacts with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Nestor Ossandon Leal

Rescue Retriever | Creature | Dog Soldier | Flash When Rescue Retriever enters the battlefield, put a +1/+1 counter on each other Soldier you control. Prevent all damage that would be dealt to other attacking Soldiers you control. | Jesper Ejsing

Hero of the Dunes | Creature | Human Soldier | When Hero of the Dunes enters the battlefield, return target artifact or creature card with mana value 3 or less from your graveyard to the battlefield. Creatures you control with mana value 3 or less get +1/+0. | Taras Susak

Autonomous Assembler | Artifact Creature | Assembly-Worker | Prototype {1}{W} — 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Vigilance {1}, {T}: Put a +1/+1 counter on target Assembly-Worker you control. | Slawomir Maniak

Platoon Dispenser | Artifact Creature | Construct | At the beginning of your end step, if you control two or more other creatures, draw a card. {3}{W}: Create a 1/1 colorless Soldier artifact creature token. Unearth {2}{W}{W} | Leon Tukker

Tocasia's Onulet | Artifact Creature | Construct | When Tocasia's Onulet leaves the battlefield, you gain 2 life. Unearth {3}{W} ({3}{W}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) | Eddie Mendoza