Nightmare [30th Anniversary Edition] Human Shaman Set: Magic 2010 Type: Artifact

Set: Magic 2010 Type: Artifact Rarity: Rare Cost: {5} Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it

From up here we can drop rocks and arrows and more rocks

if you cast it

Set: Commander Masters Type: Legendary Creature — Human Shaman Rarity: Rare Cost: {2}{B}{G} Whenever another creature you control dies

Beware the generosity of demons

Nightmare [30th Anniversary Edition] Human Shaman Set: Magic 2010 Type: ArtifactSet: 30th Anniversary Edition Type: Creature Nightmare Horse Rarity: Rare Cost: {5}{B} Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of Swamps you control. The Nightmare arises from its lair in the swamps. As the poisoned land spreads, so does the Nightmare's rage and terrifying strength.