Cover of Darkness [Onslaught] Urza's Mine He's switched sides so often

He's switched sides so often that he has become everyone's ally yet no one's friend

counter it

Set: Scourge Type: Enchantment Rarity: Rare Cost: {6}{U}{U} Whenever an opponent casts a spell

Set: Portal Three Kingdoms Type: Legendary Creature — Human Soldier Warrior Rarity: Rare Cost: {3}{W}{W} Horsemanship (This creature can't be blocked except by creatures with horsemanship

Set: Planar Chaos Type: Legendary Land Rarity: Rare Each land is a Swamp in addition to its other land types

Cover of Darkness [Onslaught] Urza's Mine He's switched sides so oftenSet: Onslaught Type: Enchantment Rarity: Rare Cost: {1}{B} As Cover of Darkness enters the battlefield, choose a creature type. Creatures of the chosen type have fear. (They can't be blocked except by artifact creatures and or black creatures.)