Lightning Greaves (Toppers) [Double Masters] Insect −5: Artifacts you control become

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

Set: Wizards of the Coast: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless

If Cosmic Horror is destroyed this way

The Forest of Argoth has developed a resistance to mechanical intrusion

Lightning Greaves (Toppers) [Double Masters] Insect −5: Artifacts you control becomeSet: Double Masters Type: Artifact Equipment Rarity: Rare Cost: {2} Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0} After lightning struck the cliffs, the ore became iron, the iron became steel, and the steel became greaves. The lightning never left.