City on Fire is a rare Enchantment card from March of the Machine (MOM), collector number 135. Current market price: $10.35 (foil $11.23), TCGplayer market prices via Scryfall.
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.