Mana Echoes [Onslaught] Zendikar Promos Equip only as a sorcery

Equip only as a sorcery

Set: Champions of Kamigawa Type: Legendary Artifact — Equipment Rarity: Rare Cost: {3} Equipped creature gets +3/+1

or enchantment

to tilt the massive jug for a sip

Set: Commander 2011 Type: Instant Rarity: Rare Cost: {U} Counter target instant or sorcery spell unless its controller pays {1}

Mana Echoes [Onslaught] Zendikar Promos Equip only as a sorcerySet: Onslaught Type: Enchantment Rarity: Rare Cost: {2}{R}{R} Whenever a creature enters the battlefield, you may add an amount of {C} equal to the number of creatures you control that share a creature type with it. When the ground is saturated with mana, even the lightest footstep can bring it to the surface.