The Brothers' War

Lay Down Arms | Sorcery | | Exile target creature with mana value less than or equal to the number of Plains you control. Its controller gains 3 life. | Liiga Smilshkalne

Meticulous Excavation | Enchantment | | {2}{W}: Return target permanent you control to its owner's hand. If it has unearth, instead exile it, then return that card to its owner's hand. Activate only during your turn. | Lucas Graciano

Recruitment Officer | Creature | Human Soldier | {3}{W}: Look at the top four cards of your library. You may reveal a creature card with mana value 3 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order. | Johan Grenier

Yotian Frontliner | Artifact Creature | Soldier | Whenever Yotian Frontliner attacks, another target creature you control gets +1/+1 until end of turn. Unearth {W} ({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.) | Jehan Choo