Grixis (Planes) [Planechase Anthology Planes] Plains Swamp −5: Artifacts you control become

−5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn

these devices doubled the output of Amrit Vatyam's forges

Set: Amonkhet Prerelease Promos Type: Legendary Creature — God Rarity: Mythic Cost: {2}{G} Deathtouch

Set: Commander 2016 Type: Land Rarity: Rare {T}: Add {C}

Grixis (Planes) [Planechase Anthology Planes] Plains Swamp −5: Artifacts you control becomeSet: Planechase Anthology Planes Type: Plane Alara Rarity: Common Blue, black, and or red creature cards in your graveyard have unearth. The unearth cost is equal to the card's mana cost. (Pay the card's mana cost: Return it to the battlefield. The creature gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) Whenever you roll {CHAOS}, put target creature card from a graveyard