Mana Echoes [Onslaught] Magic 2014 (They can't be blocked as

(They can't be blocked as long as defending player controls a Forest

Set: HarperPrism Book Promos Type: Artifact Rare Cost: {0} At the beginning of your upkeep

Set: Limited Edition Beta Type: Artifact Rare Cost: {4} All Swamps are 1/1 black creatures that are still lands

that player loses 10 life

Set: Unlimited Edition Type: Creature — Elf Archer Rare Cost: {1}{G} First strike

Mana Echoes [Onslaught] Magic 2014 (They can't be blocked asSet: Onslaught Type: Enchantment 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.