Rona, Tolarian Obliterator Art Card [March of the Machine Art Series] Swamp Forest Island then Structural Assault deals damage

then Structural Assault deals damage to each creature equal to the number of artifacts that were put into graveyards from the battlefield this turn

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {5}{B}{B} Rat offering (You may cast this card any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat

There are medicines for all afflictions but idleness

Set: Mirage Type: Creature — Dragon Rarity: Rare Cost: {4}{W}{W} Flying

Rona, Tolarian Obliterator Art Card [March of the Machine Art Series] Swamp Forest Island then Structural Assault deals damageSet: March of the Machine Art Series Type: Card Rarity: Common