Mana Echoes [Onslaught]Set: 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.

Set: Mercadian Masques Type: Instant Uncommon Cost: {2}{R} Each attacking creature gets +1/+0 until end of turn for each nonbasic land defending player controls

At the beginning of each player's upkeep

Set: Planar Chaos Type: Sorcery Rarity: Rare Cost: {3}{W} Return each Aura card from your graveyard to the battlefield

As long as a card exiled with Duplicant is a creature card

" —Thalia

Set: Conspiracy: Take the Crown Type: Enchantment Rarity: Rare Cost: {G} Whenever an opponent plays a land

Players discard cards and sacrifice creatures the same way

{T}: Prevent all combat damage that would be dealt by target creature this turn

"I write upon clean white parchment with a sharp quill and the blood of my students

−2: Target player sacrifices a creature

Set: Commander 2011 Type: Enchantment Rarity: Rare Cost: {1}{B}{B}{B} Whenever a creature you control dies

Set: Arena League 1999 Type: Legendary Artifact Creature — Golem Rarity: Rare Cost: {5} Whenever Karn