Contamination [Urza's Saga] Lightning[×2] You may play lands from

You may play lands from your graveyard

Set: Invasion Type: Artifact Rarity: Rare Cost: {2} When Tsabo's Web enters the battlefield

Set: Diamond & Pearl: Majestic Dawn Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: Commander Masters Type: Legendary Creature — Human Artificer Rarity: Mythic Cost: {2}{U}{U} When Urza

Set: Secret Lair Drop Series Type: Creature — Human Cleric Rarity: Rare Cost: {W}{W} During your turn

Contamination [Urza's Saga] Lightning[×2] You may play lands fromSet: Urza's Saga Type: Enchantment Rarity: Rare Cost: {2}{B} At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature. If a land is tapped for mana, it produces {B} instead of any other type and amount.