Doubling Season [Ravnica: City of Guilds] Goblin BerserkerSet: Ravnica: City of Guilds Type: Enchantment Rarity: Rare Cost: {4}{G} If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.
we strike first
Set: Planechase Anthology Planes Type: Plane — Zendikar Rarity: Common Creatures can't block
(Damage causes loss of life
Set: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {1}{B} Black creatures get +1/+1
Sunken Hollow enters the battlefield tapped unless you control two or more basic lands
{R}: Vildin-Pack Outcast gets +1/-1 until end of turn
Tap five untapped Merfolk you control: Put a +1/+1 counter on each Merfolk you control
Set: Rise of the Eldrazi Type: Creature — Vampire Shade Rarity: Mythic Cost: {4}{B}{B} Whenever you tap a Swamp for mana
and the steel became greaves
its power and toughness are each equal to the number of Forests defending player controls
Set: Unlimited Edition Type: Enchantment — Aura Rarity: Rare Cost: {G} Enchant artifact
their controllers sacrifice them