City on Fire [March of the Machine] Phyrexian Praetor you may search your library

you may search your library for a basic land card

Put that onto the battlefield and the rest on the bottom of your library in a random order

untap all creatures you control

Sacrifice another artifact: Proliferate

where the river itself will stand up and roar

City on Fire [March of the Machine] Phyrexian Praetor you may search your librarySet: March of the Machine Type: Enchantment Rarity: Rare Cost: {5}{R}{R}{R} Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) If a source you control would deal damage to a permanent or player, it deals triple that damage instead.