Covenant of Blood [Magic 2015] Centaur Reveler "I swore a sacred oath

"I swore a sacred oath to protect the weak and punish those who threaten them

"Get ready

Its rancid breath reeked of half-digested carrion and its own rotting innards

If they don't

Set: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {3} Lands you control have “{T}: Add one mana of any color

Covenant of Blood [Magic 2015] Centaur Reveler "I swore a sacred oathSet: Magic 2015 Type: Sorcery Rarity: Common Cost: {6}{B} 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.) Covenant of Blood deals 4 damage to any target and you gain 4 life.