The Brothers' War

Fallaji Excavation | Sorcery | | Create three tapped Powerstone tokens. You gain 3 life. (The tokens are artifacts with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Eilene Cherie

Gaea's Courser | Creature | Centaur Soldier | Whenever Gaea's Courser attacks, if there are three or more creature cards in your graveyard, draw a card. | Michele Giorgi

Tawnos, the Toymaker | Legendary Creature | Human Artificer | Whenever you cast a Beast or Bird creature spell, you may copy it, except the copy is an artifact in addition to its other types. (The copy becomes a token.) | Livia Prima

Deathbloom Ritualist | Creature | Elf Warlock | {T}: Add X mana of any one color, where X is the number of creature cards in your graveyard. | Taras Susak

Perennial Behemoth | Artifact Creature | Beast | You may play lands from your graveyard. Unearth {G}{G} ({G}{G}: 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.) | Wayne Reynolds

Rootwire Amalgam | Artifact Creature | Golem | Prototype {1}{G} — 2/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) {3}{G}{G}, Sacrifice Rootwire Amalgam: Create an X/X colorless Golem artifact creature token, where X is three times Rootwire Amalgam's power. It gains haste until end of turn. Activate only as a sorcery. | Leon Tukker